{"title":"Heritage — EJ Engines \u0026 Internals","description":"\u003cp\u003eThe EJ core of the Heritage line. Built engines, short blocks, and internals from the racing years — Ken Block Spec to the original S-series lineage.\u003c\/p\u003e","products":[{"product_id":"subaru-short-block-installation-kit-2002-2005-subaru-ej20-ej25-hybrid","title":"Subaru Short Block Installation Kit 2002-2005 Subaru EJ20\/EJ25 Hybrid","description":"\u003ch2 style=\"text-align: center;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eSubaru Short Block Installation Kit 2002-2005 Subaru EJ20\/EJ25 Hybrid\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch4\u003eShort Block Installation Kit for:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e2002-2005 Subaru Impreza WRX\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eEverything we recommend replacing when rebuilding your EJ Engine\u003c\/h4\u003e\n\u003cp\u003eSubaru Short Block Installation Kit 2002-2005 Subaru EJ20\/EJ25 Hybrid. Through many years of trial and error, we have honed in on the essentials that are a MUST to replace when installing a new short block in your Subaru. Most of these items are genuine OEM Subaru parts, as these are the most reliable and proven parts that you can get. \u003c\/p\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 set of Genuine OEM Head Gaskets\u003c\/li\u003e\n\u003cli\u003e1 set of Genuine OEM Intake Manifold Gaskets\u003c\/li\u003e\n\u003cli\u003e1 set of Genuine OEM Exhaust Manifold Gaskets\u003c\/li\u003e\n\u003cli\u003e1 Genuine OEM Water Pump Gasket\u003c\/li\u003e\n\u003cli\u003eGenuine OEM Oil Pump \u003c\/li\u003e\n\u003cli\u003eGenuine OEM Oil Pump Main Seal\u003c\/li\u003e\n\u003cli\u003e11mm ARP Head Studs (12 per box)\u003c\/li\u003e\n\u003cli\u003eNGK One Step Colder Iridium Spark Plugs (BKR7EIX 2667)\u003c\/li\u003e\n\u003cli\u003eK\u0026amp;N Oil Filter\u003c\/li\u003e\n\u003cli\u003e5 Quarts of Motul Break-In Oil (we recommend running this for at least 1000 miles)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eRead first:\u003c\/strong\u003e \u003ca href=\"\/blogs\/tech\/everything-you-need-to-know-about-your-subaru-engine\"\u003eEverything You Need to Know About Your Subaru Engine\u003c\/a\u003e — Crawford's engine guide.\u003c\/p\u003e","brand":"Crawford Performance","offers":[{"title":"Default Title","offer_id":47258646446320,"sku":"S0106","price":699.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/9032\/0880\/files\/subaru-short-block-installation-kit-2002-2005-subaru-ej20ej25-hybridcrawford-performance-2242622.jpg?v=1753975051"},{"product_id":"2004-2006-subaru-ej25-short-block-installation-kit","title":"2004-2006 Subaru EJ25 Short Block Installation Kit","description":"\u003ch2 style=\"text-align: center;\"\u003e2004-2006 Subaru EJ25 Short Block Installation Kit\u003c\/h2\u003e\n\u003ch4\u003eShort Block Installation Kit for:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e2006 Subaru Impreza WRX\u003c\/li\u003e\n\u003cli\u003e2004-2006 Subaru Impreza WRX STi\u003c\/li\u003e\n\u003cli\u003e2005-2006 Legacy GT\/Outback XT\u003c\/li\u003e\n\u003cli\u003e2004-2006 Forester XT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eEverything we recommend replacing when rebuilding your EJ25 Engine\u003c\/h4\u003e\n\u003cp\u003eThrough many years of trial and error, we have honed in on the essentials that are a MUST to replace when installing a new short block in your Subaru. Most of these items are genuine OEM Subaru parts, as these are the most reliable and proven parts that you can get. \u003c\/p\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 set of Genuine OEM Head Gaskets\u003c\/li\u003e\n\u003cli\u003e1 set of Genuine OEM Intake Manifold Gaskets\u003c\/li\u003e\n\u003cli\u003e1 set of Genuine OEM Exhaust Manifold Gaskets\u003c\/li\u003e\n\u003cli\u003e1 Genuine OEM Water Pump Gasket\u003c\/li\u003e\n\u003cli\u003eGenuine OEM Oil Pump \u003c\/li\u003e\n\u003cli\u003eGenuine OEM Oil Pump Main Seal\u003c\/li\u003e\n\u003cli\u003e11mm ARP Head Studs (12 per box)\u003c\/li\u003e\n\u003cli\u003eNGK One Step Colder Iridium Spark Plugs (LFR7AIX 2309)\u003c\/li\u003e\n\u003cli\u003eK\u0026amp;N Oil Filter\u003c\/li\u003e\n\u003cli\u003e5 Quarts of Motul Break-In Oil (we recommend running this for at least 1000 miles)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eRead first:\u003c\/strong\u003e \u003ca href=\"\/blogs\/tech\/everything-you-need-to-know-about-your-subaru-engine\"\u003eEverything You Need to Know About Your Subaru Engine\u003c\/a\u003e — Crawford's engine guide.\u003c\/p\u003e","brand":"Crawford Performance","offers":[{"title":"Default Title","offer_id":47258647658736,"sku":"S0105","price":799.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/9032\/0880\/files\/2004-2006-subaru-ej25-short-block-installation-kitcrawford-performance-6972073.jpg?v=1753975051"},{"product_id":"2007-ej25-subaru-short-block-installation-kit","title":"2007 EJ25 Subaru Short Block Installation Kit","description":"\u003ch2 style=\"text-align: center;\"\u003e2007 EJ25 Subaru Short Block Installation Kit\u003c\/h2\u003e\n\u003ch4\u003eShort Block Installation Kit for:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e2007 Subaru Impreza WRX\u003c\/li\u003e\n\u003cli\u003e2007 Subaru Impreza WRX STi\u003c\/li\u003e\n\u003cli\u003e2007 Legacy GT\/Outback XT\u003c\/li\u003e\n\u003cli\u003e2007 Forester XT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eEverything we recommend replacing when rebuilding your EJ25 Engine\u003c\/h4\u003e\n\u003cp\u003eThrough many years of trial and error, we have honed in on the essentials that are a MUST to replace when installing a new short block in your Subaru. Most of these items are genuine OEM Subaru parts, as these are the most reliable and proven parts that you can get. \u003c\/p\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 set of Genuine OEM Head Gaskets\u003c\/li\u003e\n\u003cli\u003e1 set of Genuine OEM Intake Manifold Gaskets\u003c\/li\u003e\n\u003cli\u003e1 set of Genuine OEM Exhaust Manifold Gaskets\u003c\/li\u003e\n\u003cli\u003e1 Genuine OEM Water Pump Gasket\u003c\/li\u003e\n\u003cli\u003eGenuine OEM Oil Pump \u003c\/li\u003e\n\u003cli\u003eGenuine OEM Oil Pump Main Seal\u003c\/li\u003e\n\u003cli\u003e11mm ARP Head Studs (12 per box)\u003c\/li\u003e\n\u003cli\u003eNGK One Step Colder Iridium Spark Plugs (LFR7AIX 2309)\u003c\/li\u003e\n\u003cli\u003eK\u0026amp;N Oil Filter\u003c\/li\u003e\n\u003cli\u003e5 Quarts of Motul Break-In Oil (we recommend running this for at least 1000 miles)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 2007 model year uses its own gasket and seal set, which is why this kit is separate from the \u003ca href=\"\/products\/2004-2006-subaru-ej25-short-block-installation-kit\"\u003e2004–2006 kit\u003c\/a\u003e and the \u003ca href=\"\/products\/2008-2021-ej25-subaru-short-block-installation-kit\"\u003e2008–2021 kit\u003c\/a\u003e. Order the kit that matches your model year.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRead first:\u003c\/strong\u003e \u003ca href=\"\/blogs\/tech\/everything-you-need-to-know-about-your-subaru-engine\"\u003eEverything You Need to Know About Your Subaru Engine\u003c\/a\u003e — Crawford's engine guide.\u003c\/p\u003e","brand":"Crawford Performance","offers":[{"title":"Default Title","offer_id":47258649723120,"sku":"S01051","price":699.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/9032\/0880\/files\/2007-ej25-subaru-short-block-installation-kitcrawford-performance-4768458.jpg?v=1753975050"},{"product_id":"2008-2021-ej25-subaru-short-block-installation-kit","title":"2008-2021 EJ25 Subaru Short Block Installation Kit","description":"\u003cp\u003eNew motor going in? Replace the wear items while you're there. Everything we recommend replacing with a fresh EJ25 short block — most of it genuine OEM Subaru.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's included:\u003c\/strong\u003e\u003cbr\u003e- OEM head gaskets, intake manifold gaskets, exhaust manifold gaskets\u003cbr\u003e- OEM water pump gasket, oil pump, oil pump main seal\u003cbr\u003e- 11mm ARP head studs (12)\u003cbr\u003e- NGK one-step-colder iridium plugs (LFR7AIX)\u003cbr\u003e- K\u0026amp;N oil filter\u003cbr\u003e- 5 quarts Motul break-in oil (run at least 1,000 miles)\u003c\/p\u003e\u003cp\u003eFits: 2008–2014 WRX, 2008–2021 WRX STI, 2008–2012 Legacy GT, 2008–2009 Outback XT, 2008–2013 Forester XT.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRead first:\u003c\/strong\u003e \u003ca href=\"\/blogs\/tech\/everything-you-need-to-know-about-your-subaru-engine\"\u003eEverything You Need to Know About Your Subaru Engine\u003c\/a\u003e — Crawford's engine guide.\u003c\/p\u003e","brand":"Crawford Performance","offers":[{"title":"Default Title","offer_id":47258652672240,"sku":"S01052","price":799.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/9032\/0880\/files\/2008-2021-ej25-subaru-short-block-installation-kitcrawford-performance-7876547.jpg?v=1753975050"},{"product_id":"new-subaru-oem-ej257-short-block-engine-part-10103ac870","title":"New Subaru OEM EJ257 Short Block Engine Part #10103AC870","description":"\u003ch2 style=\"text-align: center;\"\u003e\n  \u003cstrong\u003eNew Subaru OEM EJ257 Short Block Engine \u003cbr\u003ePart #10103AC870\u003c\/strong\u003e\n\u003c\/h2\u003e\n\n\u003cp\u003e\u003cem\u003e*Please note OEM Motors have a 3-5 business day lead time before shipping.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eBone Stock Brand New Genuine OEM fully assembled Short Block. Contrary to public opinion, you can safely make up to 400whp\/480bhp on an OEM EJ25 short block with proper maintenance and a solid tune.\u003c\/p\u003e\n\n\u003cp\u003eThis part is an ingredient to our recipe for a reliable Subaru Engine. If you purchase an OEM Block along with our CrawfordSPEC pistons or piston\/long rod combo, you can assemble your own Crawford built short block that can handle up to 600whp!\u003c\/p\u003e\n\n\u003ch3\u003eWant a pre-built block ready to go? \u003ca rel=\"noopener\" href=\"\/products\/crawford-built-subaru-short-block-sti-ej257-2004-2021-up-to-770-hp\" title=\"Crawford Built Short Block: STI (EJ25)\" target=\"_blank\"\u003eCheck out our options by clicking here.\u003c\/a\u003e\n\u003c\/h3\u003e\n\n\u003cp\u003eAfter reading that, you may have had one of many questions or doubts pop in your mind because of all of the opinions floating around on the web along with misleading marketing.\u003c\/p\u003e\n\n\u003cp\u003eLike:\u003cbr\u003e\n- Subaru engines are prone to fail from the factory\u003cbr\u003e\n- You need a closed deck block to make high power with an EJ\u003cbr\u003e\n- I can make 800whp safely with an EJ\u003cbr\u003e\n- My bearings failed, so I need aftermarket ones. Or: My head gaskets failed so I need aftermarket ones.\u003c\/p\u003e\n\n\u003ch3\u003eThe fact is, all of the above statements are not true. \u003ca rel=\"noopener\" href=\"\/blogs\/tech\/everything-you-need-to-know-about-your-subaru-engine\" title=\"Everything you need to know about your Subaru Engine\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to read our blog all about what our nearly 30 years of testing Subaru's has proven.\u003c\/h3\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhat Makes the OEM EJ257 Short Block the Right Foundation\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eEJ257 short block\u003c\/strong\u003e is the engine assembly Subaru engineered specifically for the WRX STI — and for good reason. The factory block, crank, rods, and pistons are precision-matched from the factory floor, making Part #10103AC870 one of the cleanest starting points for a reliable STI rebuild or performance build.\u003c\/p\u003e\n\n\u003cp\u003eAt Crawford Performance, we've spent nearly 30 years pushing these engines at the track and on the street. Our conclusion: the OEM EJ257 short block is not the weak link — improper tune, neglected maintenance, and mismatched supporting mods are. Start with a fresh OEM block, build smart, and this engine will reward you.\u003c\/p\u003e\n\n\u003ch2\u003eCompatible Vehicles\u003c\/h2\u003e\n\n\u003cp\u003ePart #10103AC870 is a direct-fit OEM assembly for the following vehicles:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSubaru WRX STI (2004–2021)\u003c\/li\u003e\n  \u003cli\u003eSubaru WRX STI Hatchback (2008–2014)\u003c\/li\u003e\n  \u003cli\u003eSubaru Forester XT (2004–2013)\u003c\/li\u003e\n  \u003cli\u003eSubaru Legacy GT (2005–2012)\u003c\/li\u003e\n  \u003cli\u003eSubaru Outback XT (2005–2009)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eNot sure if the EJ257 is the right block for your build? \u003ca href=\"\/blogs\/news\/ej257-short-block-guide\" title=\"EJ257 Short Block Guide — Crawford Performance\"\u003eRead our EJ257 Short Block Guide\u003c\/a\u003e — it covers compatibility, what's inside the assembly, and when an OEM block is the right call versus a built option\n\u003c\/p\u003e\u003cp\u003eWant it better than stock? The \u003ca href=\"\/products\/crawford-essentials-subaru-ej257-short-block-upgraded-bearings\"\u003eCrawford Essentials EJ257 short block\u003c\/a\u003e — this same OEM block with every bearing upgraded by Crawford.\u003c\/p\u003e\u003cp\u003eStep four of our reliability recipe is an Air\/Oil Separator. \u003ca href=\"\/blogs\/tech\/all-about-subarus-original-air-oil-separator-why-you-need-one\"\u003eHere's why every Subaru engine needs one.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eEJ255 or EJ257? \u003ca href=\"\/blogs\/tech\/ej255-vs-ej257-which-block-is-right-for-your-build\"\u003eWhich block is right for your build.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eRead: \u003ca href=\"\/blogs\/tech\/what-actually-kills-ej-motors\"\u003eWhat actually kills EJ motors.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eOur motors are built to order. \u003ca href=\"\/blogs\/tech\/what-built-to-order-actually-means-when-you-buy-a-motor\"\u003eWhat that actually means.\u003c\/a\u003e\u003c\/p\u003e","brand":"Crawford Performance","offers":[{"title":"Default Title","offer_id":47258653720816,"sku":"S0790","price":2532.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/9032\/0880\/files\/new-subaru-oem-ej257-short-block-engine-part-10103ac870crawford-performance-1831158.jpg?v=1753975049"},{"product_id":"crawford-built-subaru-performance-short-block-wrx-ej255-ej20-hybrid","title":"Crawford Built Subaru Performance Short Block WRX EJ255 EJ20 Hybrid","description":"\u003cp\u003e\u003cstrong\u003eBuilt to order.\u003c\/strong\u003e This motor is built to order in our shop — not pulled off a shelf. Current lead time: 2–4 weeks from your order date. Built-to-order motors are final sale.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"text-decoration: underline;\"\u003eCrawford Built Subaru Performance Short Block WRX EJ255 EJ20 Hybrid\u003c\/span\u003e\u003c\/h2\u003e\n\u003cdiv title=\"Page 1\" class=\"page\"\u003e\n\u003cdiv class=\"section\"\u003e\n\u003cdiv class=\"layoutArea\"\u003e\n\u003cdiv class=\"column\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ch4\u003eBrand New \/ No Core Fee\u2028\u003c\/h4\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch4\u003eBuilt for Reliability instead of being Overbuilt on Myths\u2028\u003c\/h4\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch4\u003eFully Blueprinted and Assembled within OEM Specs\u003cbr\u003e\n\u003c\/h4\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch4\u003e*Please \u003cem\u003ecall us to confirm Built Short Block Inventory.\u003c\/em\u003e\n\u003c\/h4\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch4\u003e\u003cem\u003eBuilt to order. Current lead time: 2–4 weeks\u003c\/em\u003e\u003c\/h4\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cbr\u003e\u003c\/em\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eCrawford Built Subaru Performance Short Block WRX EJ255 EJ20 Hybrid. All components engineered and manufactured by Crawford Performance have been tested for ultimate performance and maximum dependability on and off the race track. For over 2 decades we have tested all combinations of upgrades for the turbo-charged EJ20, EJ25, and more recently the new FA20 Subaru engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003eWe have pushed these engines to there breaking points to determine which components fail at what level. From that research we have come up with forged internals to keep your engine strong enough to withstand your desired power level. \u003c\/p\u003e\n\u003cp\u003eSelect your horsepower level from the options above to identify the best components for your engine setup. The listed specifications represent tested capacity limits that these parts can reliably handle when properly maintained and correctly calibrated.\u003c\/p\u003e\n\u003ch3\u003eS2: Rated up to 450whp (540bhp)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCrawfordSPEC S2 JE Forged Pistons\u003c\/li\u003e\n\u003cli\u003ePistons approved by the SCCA and stamped accordingly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eS3L-X (formerly S3L-i): Rated up to 550whp (660bhp)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCrawfordSPEC S3L JE Forged Pistons\u003c\/li\u003e\n\u003cli\u003eCrawfordSPEC X-Beam Pauter Billet Rods\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eS3L-X FSR: Rated to 600+whp (720+bhp)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFSR: Billet Piston Forging Upgrade - Stands for “Forged Side Relief” \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"text-align: center;\"\u003eAbout CrawfordSPEC Pistons\u003c\/h3\u003e\n\u003cp\u003eEach CrawfordSPEC piston showcases a proprietary dome configuration, developed through our direct partnership with JE Pistons. This collaborative engineering effort delivers the performance benefits listed below: \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMore manifold vacuum at idle, which makes for a tighter, healthier, more efficient engine \u003c\/li\u003e\n\u003cli\u003eLower crankcase pressure\u003c\/li\u003e\n\u003cli\u003eMore power at same boost level with same supporting mods\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAll CrawfordSPEC pistons are sized for the OEM bore of 99.5. Click on the blog link at the bottom of the page to read up on why it isn't a great idea to rebuild or bore out your EJ and use oversized pistons. \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eAbout FSR Piston Upgrade\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003ePiston forging developed by Crawford Performance. Although the forging style is available to the public, our skirt length and dish design is exclusive to Crawford Performance. This forging upgrade features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e100% CNC machined from high quality 2618-T6 wrought aluminum bar stock\u003c\/li\u003e\n\u003cli\u003eSpecifically designed for high horsepower road and drag race engines\u003c\/li\u003e\n\u003cli\u003eInternal and external bracing (bridge-like design) provides a more rigid construction while minimizing overall weight\u003c\/li\u003e\n\u003cli\u003eBillet means pistons are machined on every surface allowing for all unnecessary weight to be removed during manufacturing, reducing excess friction\/heat from high horsepower applications\u003c\/li\u003e\n\u003cli\u003eWeight reduction of up to 32 grams\u003c\/li\u003e\n\u003cli\u003eIncludes high quality 9310 steel wrist pins\u003c\/li\u003e\n\u003cli\u003eReduced skirt width and shorter wrist pin when compared to traditional “full round” style forgings. The narrow skirt helps minimize piston contact with the cylinder wall that can cause friction and power loss while the shortened wrist pins reduces the overall weight.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"text-align: center;\"\u003eAbout CrawfordSPEC Rods\u003c\/h3\u003e\n\u003ch4 style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003cp\u003eEvery CrawfordSPEC rod is designed at a specific length, engineered by and exclusive to Crawford Performance. We have worked side-by-side with Pauter Rods to create a design with the following results:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLonger than stock length not only increases strength but also increases the rod ratio which allows for smoother and more efficient power delivery\u003c\/li\u003e\n\u003cli\u003eBillet vs. Forged, made with the strongest steel available in the industry: 4340 chrome-moly \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 style=\"text-align: center;\"\u003e- - - - - - -\u003c\/h4\u003e\n\u003cp\u003eWe recommend that certain parts be replaced new when installing a new Short Block in to your vehicle. We have assembled a kit that includes each piece, down to break-in oil.\u003cbr\u003e\u003ca rel=\"noopener\" title=\"SUBARU SHORT BLOCK INSTALLATION KITS\" href=\"\/collections\/subaru-short-block-installation-kits\" target=\"_blank\"\u003eClick here to check out our Short Block Installation Kits\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo you have an EJ20?\u003cbr\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eThis particular motor presents significant challenges for achieving high horsepower output and has proven to be among Subaru's less dependable powerplants. Our solution involves a hybrid configuration that combines EJ20 cylinder heads with an EJ25 bottom end assembly.\u003c\/strong\u003e\u003cbr\u003eThese components integrate seamlessly using upgraded gasket thickness, requiring zero head alterations. This combination delivers robust performance with improved durability. Browse our EJ20\/EJ25 Hybrid Short Block Installation Kit to find everything required for this conversion. \u003cbr\u003e\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eWant to know more about why we exclude certain upgrades form our engines?\u003c\/h3\u003e\n\u003ch4 style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"Everything you need to know about your Subaru Engine\" href=\"\/blogs\/tech\/everything-you-need-to-know-about-your-subaru-engine\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to check out our blog all about Subaru engines.\u003c\/h4\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cem\u003e*Please call us to confirm Built Short Block Inventory.\u003c\/em\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003cp\u003eStep four of our reliability recipe is an Air\/Oil Separator. \u003ca href=\"\/blogs\/tech\/all-about-subarus-original-air-oil-separator-why-you-need-one\"\u003eHere's why every Subaru engine needs one.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eEJ255 or EJ257? \u003ca href=\"\/blogs\/tech\/ej255-vs-ej257-which-block-is-right-for-your-build\"\u003eWhich block is right for your build.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eRead: \u003ca href=\"\/blogs\/tech\/what-actually-kills-ej-motors\"\u003eWhat actually kills EJ motors.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eForged or cast? \u003ca href=\"\/blogs\/tech\/forged-vs-cast-internals-when-does-it-actually-matter\"\u003eWhen it actually matters.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eNew built motor? \u003ca href=\"\/blogs\/tech\/how-to-break-in-a-built-motor\"\u003eBreak it in right.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eOur motors are built to order. \u003ca href=\"\/blogs\/tech\/what-built-to-order-actually-means-when-you-buy-a-motor\"\u003eWhat that actually means.\u003c\/a\u003e\u003c\/p\u003e","brand":"Crawford Performance","offers":[{"title":"450whp\/540bhp (S2)","offer_id":47258656112880,"sku":"S0112","price":4999.0,"currency_code":"USD","in_stock":true},{"title":"550whp\/660bhp (S3L-X)","offer_id":47258656145648,"sku":"S0115","price":5499.99,"currency_code":"USD","in_stock":true},{"title":"600+whp\/720+bhp (S3L-X FSR)","offer_id":47258656178416,"sku":"S01151","price":5999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/9032\/0880\/files\/crawford-built-subaru-performance-short-block-wrx-ej255-ej20-hybridcrawford-performance-9867938.jpg?v=1753975052"},{"product_id":"crawford-performance-crawfordspec-forged-pistons-sti-internals-ej257","title":"Crawford Performance CrawfordSPEC Forged Pistons STI Internals EJ257","description":"\u003ch2\u003eCrawford Performance CrawfordSPEC Forged Pistons STI Internals EJ257\u003c\/h2\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eAll components engineered and manufactured by Crawford Performance have been tested for ultimate performance and maximum dependability on and off the race track. For over 2 decades we have tested all combinations of upgrades for the turbo-charged EJ20, EJ25, and more recently the new FA20 Subaru engines. We have pushed these engines to their breaking points to determine which components fail at what level. From that research we have come up with forged internals to keep your engine strong enough to withstand your desired power level. \u003c\/p\u003e\n\u003cp\u003eChoose your power rating above to determine which internals are right for your build. These power numbers are a “rated output”, meaning that these are the maximum power numbers that we have seen these internals withstand with proper maintenance and a solid tune.\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eS2: Rated up to 450whp (540bhp)\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCrawfordSPEC S2 JE Forged Pistons\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eS3L-X (formerly S3L-i): Rated up to 550whp (660bhp)\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCrawfordSPEC S3L JE Forged Pistons\u003c\/li\u003e\n\u003cli\u003eCrawfordSPEC X-Beam Pauter Billet Rods\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eS3L-X FSR: Rated to 600+whp (720+bhp)\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eFSR: Billet Piston Forging Upgrade - Stands for “Forged Side Relief” \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 style=\"text-align: center;\"\u003eAbout CrawfordSPEC Pistons\u003c\/h4\u003e\n\u003cp\u003eEvery CrawfordSPEC piston features a unique dish design, engineered by and exclusive to Crawford Performance. We have worked side-by-side with JE Pistons to create a design with the following results:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMore manifold vacuum at idle, which makes for a tighter, healthier, more efficient engine \u003c\/li\u003e\n\u003cli\u003eLower crankcase pressure\u003c\/li\u003e\n\u003cli\u003eMore power at same boost level with same supporting mods\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAll CrawfordSPEC pistons are sized for the OEM bore of 99.5. Click here to read up on why you shouldn’t rebuild or bore out your EJ and use oversized pistons. \u003c\/p\u003e\n\u003ch4 style=\"text-align: center;\"\u003eAbout FSR Piston Upgrade\u003c\/h4\u003e\n\u003ch4 style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003cp\u003ePiston forging developed by Crawford Performance. Although the forging style is available to the public, our skirt length and dish design is exclusive to Crawford Performance. This forging upgrade features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e100% CNC machined from high quality 2618-T6 wrought aluminum bar stock\u003c\/li\u003e\n\u003cli\u003eSpecifically designed for high horsepower road and drag race engines\u003c\/li\u003e\n\u003cli\u003eInternal and external bracing (bridge-like design) provides a more rigid construction while minimizing overall weight\u003c\/li\u003e\n\u003cli\u003eBillet means pistons are machined on every surface allowing for all unnecessary weight to be removed during manufacturing, reducing excess friction\/heat from high horsepower applications\u003c\/li\u003e\n\u003cli\u003eWeight reduction of up to 32 grams\u003c\/li\u003e\n\u003cli\u003eIncludes high quality 9310 steel wrist pins\u003c\/li\u003e\n\u003cli\u003eReduced skirt width and shorter wrist pin when compared to traditional “full round” style forgings. The narrow skirt helps minimize piston contact with the cylinder wall that can cause friction and power loss while the shortened wrist pins reduces the overall weight.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 style=\"text-align: center;\"\u003eAbout CrawfordSPEC Rods\u003c\/h4\u003e\n\u003ch4 style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003cp\u003eEvery CrawfordSPEC rod is designed at a specific length, engineered by and exclusive to Crawford Performance. We have worked side-by-side with Pauter Rods to create a design with the following results:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLonger than stock length not only increases strength but also increases the rod ratio which allows for smoother and more efficient power delivery\u003c\/li\u003e\n\u003cli\u003eBillet vs. Forged, made with the strongest steel available in the industry: 4340 chrome-moly \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 style=\"text-align: center;\"\u003e- - - - - - -\u003c\/h4\u003e\n\u003cp\u003eWe recommend that certain parts be replaced new when installing a new Short Block in to your vehicle. We have assembled a kit that includes each piece, down to break-in oil.\u003cbr\u003e\u003ca title=\"SUBARU SHORT BLOCK INSTALLATION KITS\" href=\"\/collections\/subaru-short-block-installation-kits\"\u003eClick here to check out our Short Block Installation Kits.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo you have an EJ20?\u003c\/strong\u003e\u003cbr\u003eThe EJ20 engine is the most difficult to successfully make big power with, and also one of the least reliable engines Subaru has manufactured. For this reason, we build all of our EJ20’s as a hybrid setup: Using the EJ20 cylinder heads on an EJ25 short block\/crankcase. The two are compatible using special thicker gaskets, with no modifications needed to the heads themselves. This setup allows you to make big power reliably. Check out our EJ20\/EJ25 Hybrid Short Back Installation Kit for all components needed to make this setup work.  \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eWant to know more about why we exclude certain upgrades form our engines?\u003c\/h3\u003e\n\u003ch4 style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" title=\"Everything you need to know about your Subaru Engine\" href=\"\/blogs\/tech\/everything-you-need-to-know-about-your-subaru-engine\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to check out our blog all about Subaru engines.\u003c\/h4\u003e","brand":"Crawford Performance","offers":[{"title":"450whp\/540bhp (S2) \/ OEM (8.2:1)","offer_id":47258656604400,"sku":"CSS2P","price":799.99,"currency_code":"USD","in_stock":true},{"title":"550whp\/540bhp (S3L-X) \/ OEM (8.2:1)","offer_id":47258656637168,"sku":"CSS3LP","price":799.99,"currency_code":"USD","in_stock":true},{"title":"600+whp\/720+bhp (S3L-X FSR) \/ OEM (8.2:1)","offer_id":47258656669936,"sku":"CSS3FSR","price":799.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/9032\/0880\/files\/crawford-performance-crawfordspec-forged-pistons-sti-internals-ej257crawford-performance-3789295.jpg?v=1753975052"},{"product_id":"new-subaru-oem-ej255-short-block-engine-part-10103ac880","title":"New Subaru OEM EJ255 Short Block Engine Part #10103AC880","description":"\u003ch2 style=\"text-align: center;\"\u003e\n  \u003cstrong\u003eNew Subaru OEM EJ255 Short Block Engine\u003cbr\u003ePart #10103AC880\u003c\/strong\u003e\n\u003c\/h2\u003e\n\n\u003cp\u003e\u003cem\u003e*Please note OEM Motors have a 3-5 business day lead time before shipping.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eNew Subaru OEM EJ255 Short Block Engine Part #10103AC880 is a Bone Stock Brand New Genuine OEM fully assembled Short Block. Contrary to public opinion, you can safely make up to 400whp\/480bhp on an OEM EJ25 short block with proper maintenance and a solid tune.\u003c\/p\u003e\n\n\u003cp\u003eThis part is an ingredient to our recipe for a reliable Subaru Engine. If you purchase an OEM Block along with our CrawfordSPEC pistons or piston\/long rod combo, you can assemble your own Crawford built short block that can handle up to 600whp!\u003c\/p\u003e\n\n\u003cp\u003eWant a pre-built block ready to go? \u003ca href=\"\/products\/crawford-built-subaru-performance-short-block-wrx-ej255-ej20-hybrid\" title=\"Crawford Built Short Block: WRX (EJ25)\" rel=\"noopener\" target=\"_blank\"\u003eCheck out our Crawford Built WRX Short Block here.\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003eAfter reading that, you may have had one of many questions or doubts pop in your mind because of all of the opinions floating around on the web along with misleading marketing. Like:\u003cbr\u003e\n- Subaru engines are prone to fail from the factory\u003cbr\u003e\n- You need a closed deck block to make high power with an EJ\u003cbr\u003e\n- I can make 800whp safely with an EJ\u003cbr\u003e\n- My bearings failed, so I need aftermarket ones. Or: My head gaskets failed so I need aftermarket ones.\u003cbr\u003e\nThe fact is, all of the above statements are not true. \u003ca href=\"\/blogs\/tech\/everything-you-need-to-know-about-your-subaru-engine\" title=\"Everything you need to know about your Subaru Engine\" rel=\"noopener\" target=\"_blank\"\u003eClick here to read our blog\u003c\/a\u003e about what our 30 years of testing Subarus has proven.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhat Makes the OEM EJ255 Short Block the Right Foundation\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eEJ255 short block\u003c\/strong\u003e is the factory-assembled engine core Subaru used across its turbocharged WRX and select Forester XT and Legacy GT platforms. Part #10103AC880 is built to the same factory tolerances as the day it left Subaru's production line — making it one of the cleanest, most reliable starting points for a rebuild or performance build on the EJ25 platform.\u003c\/p\u003e\n\n\u003cp\u003eAt Crawford Performance, we've spent 30 years testing every combination of EJ upgrades on the street and at the track. Our conclusion: the OEM EJ255 short block is not the weak link. Improper tune, neglected maintenance, and mismatched supporting mods are. Start with a genuine OEM block and build it right the first time.\u003c\/p\u003e\n\n\u003ch2\u003eEJ255 vs. EJ257 — Which Short Block Do You Need?\u003c\/h2\u003e\n\n\u003cp\u003eThe EJ255 and EJ257 are closely related but serve different applications:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEJ255\u003c\/strong\u003e — the turbocharged block used in the WRX (2002–2014) and select Forester XT \/ Legacy GT \/ Outback XT models. Part #10103AC880.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEJ257\u003c\/strong\u003e — the STI-spec block with a larger bore and higher-output internals. Used in the WRX STI (2004–2021). \u003ca href=\"\/products\/new-subaru-oem-ej257-short-block-engine-part-10103ac870\" title=\"New Subaru OEM EJ257 Short Block Engine Part 10103AC870\"\u003eView the OEM EJ257 Short Block here — Part #10103AC870.\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eIf you're unsure which block your vehicle uses, check your VIN or contact our team before ordering.\u003c\/p\u003e\n\n\u003ch2\u003eCompatible Vehicles\u003c\/h2\u003e\n\n\u003cp\u003ePart #10103AC880 is a direct-fit OEM assembly for the following vehicles:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSubaru WRX (2002–2014)\u003c\/li\u003e\n  \u003cli\u003eSubaru Forester XT (2004–2008)\u003c\/li\u003e\n  \u003cli\u003eSubaru Legacy GT (2005–2009)\u003c\/li\u003e\n  \u003cli\u003eSubaru Outback XT (2005–2009)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWant to understand exactly what's inside this assembly and when an OEM block is the right call versus a built option? \u003ca href=\"\/blogs\/news\/ej257-short-block-guide\" title=\"EJ257 Short Block Guide — Crawford Performance\"\u003eRead our EJ257 Short Block Guide\u003c\/a\u003e — it covers the full EJ25 platform, compatibility, and power limits in detail.\u003c\/p\u003e\u003cp\u003eWant it better than stock? The \u003ca href=\"\/products\/crawford-essentials-subaru-ej255-short-block-upgraded-bearings\"\u003eCrawford Essentials EJ255 short block\u003c\/a\u003e — this same OEM block with every bearing upgraded by Crawford.\u003c\/p\u003e\u003cp\u003eStep four of our reliability recipe is an Air\/Oil Separator. \u003ca href=\"\/blogs\/tech\/all-about-subarus-original-air-oil-separator-why-you-need-one\"\u003eHere's why every Subaru engine needs one.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eEJ255 or EJ257? \u003ca href=\"\/blogs\/tech\/ej255-vs-ej257-which-block-is-right-for-your-build\"\u003eWhich block is right for your build.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eRead: \u003ca href=\"\/blogs\/tech\/what-actually-kills-ej-motors\"\u003eWhat actually kills EJ motors.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eOur motors are built to order. \u003ca href=\"\/blogs\/tech\/what-built-to-order-actually-means-when-you-buy-a-motor\"\u003eWhat that actually means.\u003c\/a\u003e\u003c\/p\u003e","brand":"Crawford Performance","offers":[{"title":"Default Title","offer_id":47258668073200,"sku":"S0794","price":2493.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/9032\/0880\/files\/new-subaru-oem-ej255-short-block-engine-part-10103ac880crawford-performance-6281033.jpg?v=1757536524"},{"product_id":"crawford-performance-crawfordspec-forged-pistons-wrx-internals-ej20-ej255","title":"Crawford Performance CrawfordSPEC Forged Pistons WRX Internals EJ20\/EJ255","description":"\u003ch2\u003eCrawford Performance CrawfordSPEC Forged Pistons WRX Internals EJ20\/EJ255\u003c\/h2\u003e\n\u003cp\u003eAll components engineered and manufactured by Crawford Performance have been tested for ultimate performance and maximum dependability on and off the race track. For over 2 decades we have tested all combinations of upgrades for the turbo-charged EJ20, EJ25, and more recently the new FA20 Subaru engines. We have pushed these engines to their breaking points to determine which components fail at what level. From that research we have come up with forged internals to keep your engine strong enough to withstand your desired power level. \u003c\/p\u003e\n\u003cp\u003eChoose your power rating above to determine which internals are right for your build. These power numbers are a “rated output”, meaning that these are the maximum power numbers that we have seen these internals withstand with proper maintenance and a solid tune.\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eS2: Rated up to 450whp (540bhp)\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCrawfordSPEC S2 JE Forged Pistons\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eS3L-X (formerly S3L-i): Rated up to 550whp (660bhp)\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCrawfordSPEC S3L JE Forged Pistons\u003c\/li\u003e\n\u003cli\u003eCrawfordSPEC X-Beam Pauter Billet Rods\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eS3L-X FSR: Rated to 600+whp (720+bhp)\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eFSR: Billet Piston Forging Upgrade - Stands for “Forged Side Relief” \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"text-align: center;\"\u003eAbout CrawfordSPEC Pistons\u003c\/h3\u003e\n\u003cp\u003eEvery CrawfordSPEC piston features a unique dish design, engineered by and exclusive to Crawford Performance. We have worked side-by-side with JE Pistons to create a design with the following results:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMore manifold vacuum at idle, which makes for a tighter, healthier, more efficient engine \u003c\/li\u003e\n\u003cli\u003eLower crankcase pressure\u003c\/li\u003e\n\u003cli\u003eMore power at same boost level with same supporting mods\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAll CrawfordSPEC pistons are sized for the OEM bore of 99.5. Click here to read up on why you shouldn’t rebuild or bore out your EJ and use oversized pistons. \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eAbout FSR Piston Upgrade\u003c\/h3\u003e\n\u003cp\u003ePiston forging developed by Crawford Performance. Although the forging style is available to the public, our skirt length and dish design is exclusive to Crawford Performance. This forging upgrade features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e100% CNC machined from high quality 2618-T6 wrought aluminum bar stock\u003c\/li\u003e\n\u003cli\u003eSpecifically designed for high horsepower road and drag race engines\u003c\/li\u003e\n\u003cli\u003eInternal and external bracing (brigde-like design) provides a more rigid construction while minimizing overall weight\u003c\/li\u003e\n\u003cli\u003eBillet means pistons are machined on every surface allowing for all unnecessary weight to be removed during manufacturing, reducing excess friction\/heat from high horsepower applications\u003c\/li\u003e\n\u003cli\u003eWeight reduction of up to 32 grams\u003c\/li\u003e\n\u003cli\u003eIncludes high quality 9310 steel wrist pins\u003c\/li\u003e\n\u003cli\u003eReduced skirt width and shorter wrist pin when compared to traditional “full round” style forgings. The narrow skirt helps minimize piston contact with the cylinder wall that can cause friction and power loss while the shortened wrist pins reduces the overall weight.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 style=\"text-align: center;\"\u003eAbout CrawfordSPEC Rods\u003c\/h4\u003e\n\u003ch4 style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003cp\u003eEvery CrawfordSPEC rod is designed at a specific length, engineered by and exclusive to Crawford Performance. We have worked side-by-side with Pauter Rods to create a design with the following results:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLonger than stock length not only increases strength but also increases the rod ratio which allows for smoother and more efficient power delivery\u003c\/li\u003e\n\u003cli\u003eBillet vs. Forged, made with the strongest steel available in the industry: 4340 chrome-moly \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 style=\"text-align: center;\"\u003e- - - - - - -\u003c\/h4\u003e\n\u003cp\u003eWe recommend that certain parts be replaced new when installing a new Short Block in to your vehicle. We have assembled a kit that includes each piece, down to break-in oil.\u003cbr\u003e\u003ca href=\"\/collections\/subaru-short-block-installation-kits\" title=\"SUBARU SHORT BLOCK INSTALLATION KITS\"\u003eClick here to check out our Short Block Installation Kits.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo you have an EJ20?\u003c\/strong\u003e\u003cbr\u003eThe EJ20 engine is the most difficult to successfully make big power with, and also one of the least reliable engines Subaru has manufactured. For this reason, we build all of our EJ20’s as a hybrid setup: Using the EJ20 cylinder heads on an EJ25 short block\/crankcase. The two are compatible using special thicker gaskets, with no modifications needed to the heads themselves. This setup allows you to make big power reliably. Check out our EJ20\/EJ25 Hybrid Short Back Installation Kit for all components needed to make this setup work.  \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eWant to know more about why we exclude certain upgrades form our engines?\u003c\/h3\u003e\n\u003ch4 style=\"text-align: center;\"\u003e\n\u003ca href=\"\/blogs\/tech\/everything-you-need-to-know-about-your-subaru-engine\" target=\"_blank\" title=\"Everything you need to know about your Subaru Engine\" rel=\"noopener noreferrer\"\u003eClick here\u003c\/a\u003e to check out our blog all about Subaru engines.\u003c\/h4\u003e","brand":"Crawford Performance","offers":[{"title":"450whp\/540bhp (S2) \/ OEM (8.2:1)","offer_id":47258689536240,"sku":"CSEJS2","price":799.99,"currency_code":"USD","in_stock":true},{"title":"550whp\/540bhp (S3L-X) \/ OEM (8.2:1)","offer_id":47258689569008,"sku":"CSEJS3","price":799.99,"currency_code":"USD","in_stock":true},{"title":"600+whp\/720+bhp (S3L-X FSR) \/ OEM (8.2:1)","offer_id":47258689601776,"sku":"CSEJS3FSR","price":799.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/9032\/0880\/files\/crawford-performance-crawfordspec-forged-pistons-wrx-internals-ej20ej255crawford-performance-1796435.jpg?v=1791508748"},{"product_id":"crawford-built-subaru-short-block-sti-ej257-2004-2021-up-to-770-hp","title":"Crawford Built Subaru Short Block STI EJ257 2004-2021 UP TO 770-HP","description":"\u003cp\u003e\u003cstrong\u003eBuilt to order.\u003c\/strong\u003e This motor is built to order in our shop — not pulled off a shelf. Current lead time: 2–4 weeks from your order date. Built-to-order motors are final sale.\u003c\/p\u003e\n\u003ch2 id=\"tinymce_scroll_sign\"\u003eCrawford Built Subaru Short Block: Ultimate Performance for STI EJ257 Engines\u003c\/h2\u003e\n\u003cdiv class=\"page\" title=\"Page 1\"\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch2\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eCrawford Performance Built Short Blocks:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"page\" title=\"Page 1\"\u003e\n\u003cdiv class=\"section\"\u003e\n\u003cdiv class=\"layoutArea\"\u003e\n\u003cdiv class=\"column\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ch3\u003eBrand New \/ No Core Fee\u2028\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eBuilt for Reliability instead of being Overbuilt on Myths\u2028\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eFully Blueprinted and Assembled within OEM Specs\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003e\u003cem\u003eBuilt to order. Current lead time: 2–4 weeks.\u003c\/em\u003e\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003eAll components engineered and manufactured by Crawford Performance have been tested for ultimate performance and maximum dependability on and off the race track. For over two decades we have tested all combinations of upgrades for the turbocharged EJ20, EJ25, and more recently the new FA20 Subaru engines.\u003c\/p\u003e\n\u003cp\u003eWe have pushed these engines to their breaking points to determine which components fail at what level. From that research we have come up with forged internals to keep your engine strong enough to withstand your desired power level. \u003c\/p\u003e\n\u003cp\u003eChoose your power rating above to determine which internals are right for your build. These power numbers are a “rated output”, meaning that these are the maximum power numbers that we have seen these internals withstand with proper maintenance and a solid tune.\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eCrawford Street Spec CSS 540: \u003c\/span\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eStarting with a new OEM Short Block, no core!\u003c\/li\u003e\n\u003cli\u003eRated up to 450whp (540 bhp)\u003c\/li\u003e\n\u003cli\u003eCrawfordSPEC CSS JE Forged Pistons \u003cem\u003eapproved by the SCCA and stamped accordingly\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003eUpgraded Race-Proven Bearings\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eCrawford Club Racer CCR 660: \u003c\/span\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eStarting with a new OEM Short Block, no core!\u003c\/li\u003e\n\u003cli\u003eRated up to 550whp (660 bhp\u003c\/li\u003e\n\u003cli\u003eCrawfordSPEC CCR JE Forged Pistons\u003c\/li\u003e\n\u003cli\u003eCrawfordSPEC X-Beam Pauter Billet Rods\u003c\/li\u003e\n\u003cli\u003eUpgraded Race-Proven Bearings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003eCrawford Racer Spec CRS 720+:\u003c\/span\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eStarting with a new OEM Short Block, no core!\u003c\/li\u003e\n\u003cli\u003eRated to 600+whp (720+bhp)\u003c\/li\u003e\n\u003cli\u003eCrawfordSPEC CRS FSR: Billet Forged Piston Forging Upgrade - \u003cbr\u003eStands for “Forged Side Relief”\u003c\/li\u003e\n\u003cli\u003eCrawfordSPEC Forged Rods\u003c\/li\u003e\n\u003cli\u003eUpgraded Race-Proven Bearings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 style=\"text-align: center;\"\u003e\u003cstrong\u003eAbout CrawfordSPEC Pistons\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cem\u003eEvery \u003c\/em\u003eCrawfordSPEC piston features a unique dish design, engineered by and exclusive to Crawford Performance. We have worked side-by-side with JE Pistons to create a design with the following results:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMore manifold vacuum at idle, which makes for a tighter, healthier, more efficient engine \u003c\/li\u003e\n\u003cli\u003eLower crankcase pressure\u003c\/li\u003e\n\u003cli\u003eMore power at same boost level with same supporting mods\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAll CrawfordSPEC pistons are sized for the OEM bore of 99.5. Click on the blog link at the bottom of the page to read up on why it isn't a great idea to rebuild or bore out your EJ and use oversized pistons. \u003c\/p\u003e\n\u003ch4 style=\"text-align: center;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAbout FSR Piston Upgrade\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp style=\"text-align: center;\"\u003eForging Upgrade - Stands for “Forged Side Relief”. Piston forging developed by Crawford Performance. Although the forging style is available to the public, our skirt length and dish design is exclusive to Crawford Performance. This forging upgrade features:\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e100% CNC machined from high quality 2618-T6 wrought aluminum bar stock\u003c\/li\u003e\n\u003cli\u003eSpecifically designed for high horsepower road and drag race engines\u003c\/li\u003e\n\u003cli\u003eInternal and external bracing (bridge-like design) provides a more rigid construction while minimizing overall weight\u003c\/li\u003e\n\u003cli\u003eBillet means pistons are machined on every surface allowing for all unnecessary weight to be removed during manufacturing, reducing excess friction\/heat from high horsepower applications\u003c\/li\u003e\n\u003cli\u003eWeight reduction of up to 32 grams\u003c\/li\u003e\n\u003cli\u003eIncludes high quality 9310 steel wrist pins\u003c\/li\u003e\n\u003cli\u003eReduced skirt width and shorter wrist pin when compared to traditional “full round” style forgings. The narrow skirt helps minimize piston contact with the cylinder wall that can cause friction and power loss while the shortened wrist pins reduces the overall weight.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 style=\"text-align: center;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAbout CrawfordSPEC Rods\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp style=\"text-align: center;\"\u003eEvery CrawfordSPEC rod is designed at a specific length, engineered by and exclusive to Crawford Performance. We have worked side-by-side with Pauter Rods to create a design with the following results:\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLonger than stock length not only increases strength but also increases the rod ratio which allows for smoother and more efficient power delivery\u003c\/li\u003e\n\u003cli\u003eBillet vs. Forged, made with the strongest steel available in the industry: 4340 chrome-moly \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 style=\"text-align: center;\"\u003e- - - - - - -\u003c\/h4\u003e\n\u003cp\u003eWe recommend that certain parts be replaced new when installing a new Short Block in to your vehicle. We have assembled a kit that includes each piece, down to break-in oil.\u003cbr\u003e\u003cstrong\u003e\u003ca href=\"\/collections\/subaru-short-block-installation-kits\" title=\"SUBARU SHORT BLOCK INSTALLATION KITS\" rel=\"noopener\" target=\"_blank\"\u003eClick here to check out our Short Block Installation Kits\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003cp\u003e\u003cstrong\u003eRead first:\u003c\/strong\u003e \u003ca href=\"\/blogs\/tech\/everything-you-need-to-know-about-your-subaru-engine\"\u003eEverything You Need to Know About Your Subaru Engine\u003c\/a\u003e — Crawford's engine guide.\u003c\/p\u003e\u003cp\u003eStep four of our reliability recipe is an Air\/Oil Separator. \u003ca href=\"\/blogs\/tech\/all-about-subarus-original-air-oil-separator-why-you-need-one\"\u003eHere's why every Subaru engine needs one.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eEJ255 or EJ257? \u003ca href=\"\/blogs\/tech\/ej255-vs-ej257-which-block-is-right-for-your-build\"\u003eWhich block is right for your build.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eRead: \u003ca href=\"\/blogs\/tech\/what-actually-kills-ej-motors\"\u003eWhat actually kills EJ motors.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eForged or cast? \u003ca href=\"\/blogs\/tech\/forged-vs-cast-internals-when-does-it-actually-matter\"\u003eWhen it actually matters.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eNew built motor? \u003ca href=\"\/blogs\/tech\/how-to-break-in-a-built-motor\"\u003eBreak it in right.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eOur motors are built to order. \u003ca href=\"\/blogs\/tech\/what-built-to-order-actually-means-when-you-buy-a-motor\"\u003eWhat that actually means.\u003c\/a\u003e\u003c\/p\u003e","brand":"Crawford Performance","offers":[{"title":"Crawford Street Spec CSS 540 450whp\/540bhp","offer_id":47258689863920,"sku":"S0109","price":4999.0,"currency_code":"USD","in_stock":true},{"title":"Crawford Club Racer CCR 660 550whp\/660bhp","offer_id":47258689896688,"sku":"S0114","price":5599.0,"currency_code":"USD","in_stock":true},{"title":"Crawford Racer Spec CRS 720+ 600+whp\/720+bhp","offer_id":47258689929456,"sku":"S01141","price":5999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/9032\/0880\/files\/crawford-built-subaru-short-block-sti-ej257-2004-2021-up-to-770-hpcrawford-performance-9128710.png?v=1757552810"},{"product_id":"crawford-subaru-ej257-long-block-forged-race-proven-power-to-770-hp","title":"Crawford Subaru EJ255 EJ257 Long Block | Forged, Race-Proven Power to 770 HP","description":"\u003cp\u003e\u003cstrong\u003eBuilt to order.\u003c\/strong\u003e This motor is built to order in our shop — not pulled off a shelf. Current lead time: 2–4 weeks from your order date. Built-to-order motors are final sale.\u003c\/p\u003e\n\u003ch5\u003e\u003cem\u003ePricing includes reusing and reconditioning your previous heads\u003c\/em\u003e\u003c\/h5\u003e\n\u003ch2\u003eCrawford Subaru Long Block EJ255 EJ257 (2004–2021) – Up to 770 HP\u003c\/h2\u003e\n\u003cp\u003eFor over two decades, Crawford Performance has been the trusted name in Subaru performance engines. Our \u003cstrong\u003eSubaru EJ257 Long Blocks\u003c\/strong\u003e are hand-assembled with forged internals, blueprint machining, and our exclusive CrawfordSPEC components to deliver \u003cstrong\u003ereliable power up to 770 horsepower\u003c\/strong\u003e — proven on the street, at the track, and in Subaru of America motorsports programs.\u003c\/p\u003e\n\u003cp\u003eUnlike overbuilt engines based on myths, every Crawford long block is engineered within \u003cstrong\u003eOEM specifications\u003c\/strong\u003e for precision, dependability, and longevity. Each engine starts as a brand-new OEM short block (no core required) and is upgraded with CrawfordSPEC forged pistons, rods, and bearings designed exclusively for Subaru’s turbocharged EJ platform.\u003c\/p\u003e\n\u003ch2\u003eChoose Your Power Rating\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eCrawford Street Spec (CSS 540)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRated up to \u003cstrong\u003e450 whp (540 bhp)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eNew OEM short block – \u003cstrong\u003eno core required\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCrawfordSPEC CSS JE Forged Pistons (SCCA-approved and stamped)\u003c\/li\u003e\n\u003cli\u003eUpgraded race-proven bearings\u003c\/li\u003e\n\u003cli\u003eCrawford Essential Subaru Cylinder Head Service Inspection \u0026amp; Prep\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eCrawford Club Racer (CCR 660)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRated up to \u003cstrong\u003e550 whp (660 bhp)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eNew OEM short block – \u003cstrong\u003eno core required\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCrawfordSPEC CCR JE Forged Pistons\u003c\/li\u003e\n\u003cli\u003eCrawfordSPEC X-Beam Pauter Billet Rods\u003c\/li\u003e\n\u003cli\u003eUpgraded race-proven bearings\u003c\/li\u003e\n\u003cli\u003eCrawford Essential Subaru Cylinder Head Service Inspection \u0026amp; Prep\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eCrawford Racer Spec (CRS 720+)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRated up to \u003cstrong\u003e600+ whp (720+ bhp)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eNew OEM short block – \u003cstrong\u003eno core required\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCrawfordSPEC CRS FSR Billet Forged Pistons (Forged Side Relief)\u003c\/li\u003e\n\u003cli\u003eCrawfordSPEC Forged Rods\u003c\/li\u003e\n\u003cli\u003eUpgraded race-proven bearings\u003c\/li\u003e\n\u003cli\u003eCrawford Essential Subaru Cylinder Head Service Inspection \u0026amp; Prep\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAbout CrawfordSPEC Pistons\u003c\/h2\u003e\n\u003cp\u003eDeveloped exclusively with JE Pistons, every CrawfordSPEC piston is designed with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExclusive dish design for stronger combustion and efficiency.\u003c\/li\u003e\n\u003cli\u003eOEM bore size of 99.5mm (no oversized pistons needed).\u003c\/li\u003e\n\u003cli\u003eIncreased vacuum, lower crankcase pressure, and more power at the same boost.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cblockquote\u003e\n\u003cp\u003e📖 Learn more in our blog about why oversized pistons aren’t the best choice for rebuilding your EJ motor.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003ch2\u003eAbout the FSR Piston Upgrade\u003c\/h2\u003e\n\u003cp\u003eOur \u003cstrong\u003eForged Side Relief (FSR) Billet Piston\u003c\/strong\u003e is engineered for \u003cstrong\u003ehigh horsepower road and drag race engines\u003c\/strong\u003e. Features include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e100% CNC-machined from 2618-T6 aluminum bar stock.\u003c\/li\u003e\n\u003cli\u003eInternal and external bracing for rigidity and weight reduction.\u003c\/li\u003e\n\u003cli\u003eUp to \u003cstrong\u003e32 grams lighter\u003c\/strong\u003e than traditional forgings.\u003c\/li\u003e\n\u003cli\u003eHigh-quality 9310 steel wrist pins.\u003c\/li\u003e\n\u003cli\u003eReduced skirt width for less friction and power loss.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAbout CrawfordSPEC Rods\u003c\/h2\u003e\n\u003cp\u003eDeveloped with Pauter Rods, CrawfordSPEC rods feature:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLonger than stock length\u003c\/strong\u003e for improved rod ratio and smoother power delivery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBillet 4340 chrome-moly steel\u003c\/strong\u003e, the strongest in the industry.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEngineered exclusively for Subaru EJ applications by Crawford Performance.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOrder Your Crawford EJ257 Long Block\u003c\/h2\u003e\n\u003cp\u003eWhen you choose a Crawford Subaru Long Block, you’re getting:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA \u003cstrong\u003ebrand-new engine build\u003c\/strong\u003e — no core required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace-proven forged internals\u003c\/strong\u003e engineered for your target horsepower.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotorsport-grade craftsmanship\u003c\/strong\u003e trusted by Subaru of America and Ken Block.\u003c\/li\u003e\n\u003cli\u003eA precision-assembled long block capable of \u003cstrong\u003e500–770 horsepower\u003c\/strong\u003e with proper tuning and maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBuilt to order.\u003c\/strong\u003e Crawford Long Blocks are built to order. Current lead time: 2–4 weeks.\u003c\/p\u003e\u003ch3\u003eWarranty\u003c\/h3\u003e\u003cp\u003eEvery Crawford built motor includes a 1-year \/ 12,000-mile warranty. Extended 24 and 36-month coverage is available — see the \u003ca href=\"\/pages\/motor-warranty\"\u003eMotor Warranty page\u003c\/a\u003e for terms.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRead first:\u003c\/strong\u003e \u003ca href=\"\/blogs\/tech\/everything-you-need-to-know-about-your-subaru-engine\"\u003eEverything You Need to Know About Your Subaru Engine\u003c\/a\u003e — Crawford's engine guide.\u003c\/p\u003e\u003cp\u003eStep four of our reliability recipe is an Air\/Oil Separator. \u003ca href=\"\/blogs\/tech\/all-about-subarus-original-air-oil-separator-why-you-need-one\"\u003eHere's why every Subaru engine needs one.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eEJ255 or EJ257? \u003ca href=\"\/blogs\/tech\/ej255-vs-ej257-which-block-is-right-for-your-build\"\u003eWhich block is right for your build.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eRead: \u003ca href=\"\/blogs\/tech\/what-actually-kills-ej-motors\"\u003eWhat actually kills EJ motors.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eForged or cast? \u003ca href=\"\/blogs\/tech\/forged-vs-cast-internals-when-does-it-actually-matter\"\u003eWhen it actually matters.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eNew built motor? \u003ca href=\"\/blogs\/tech\/how-to-break-in-a-built-motor\"\u003eBreak it in right.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eOur motors are built to order. \u003ca href=\"\/blogs\/tech\/what-built-to-order-actually-means-when-you-buy-a-motor\"\u003eWhat that actually means.\u003c\/a\u003e\u003c\/p\u003e","brand":"Crawford Performance","offers":[{"title":"Crawford Street Spec CSS 540 450whp\/540bhp \/ 255","offer_id":48018078236912,"sku":"S0109LB","price":6999.0,"currency_code":"USD","in_stock":true},{"title":"Crawford Street Spec CSS 540 450whp\/540bhp \/ 257","offer_id":50573599080688,"sku":null,"price":6999.0,"currency_code":"USD","in_stock":true},{"title":"Crawford Club Racer CCR 660 550whp\/660bhp \/ 255","offer_id":48018078269680,"sku":"S0109LB-2","price":7899.99,"currency_code":"USD","in_stock":true},{"title":"Crawford Club Racer CCR 660 550whp\/660bhp \/ 257","offer_id":50573599113456,"sku":null,"price":7899.99,"currency_code":"USD","in_stock":true},{"title":"Crawford Racer Spec CRS 720+ 600+whp\/720+bhp \/ 255","offer_id":48018078302448,"sku":"S0109LB-3","price":8499.0,"currency_code":"USD","in_stock":true},{"title":"Crawford Racer Spec CRS 720+ 600+whp\/720+bhp \/ 257","offer_id":50573599146224,"sku":null,"price":8499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/9032\/0880\/files\/Ken_Block_Spec_EJ257_Engine_Long_Block_Assembly.jpg?v=1764959582"},{"product_id":"crawford-essentials-subaru-ej257-short-block-upgraded-bearings","title":"Crawford Essentials Subaru EJ257 Short Block | Upgraded Bearings","description":"\u003ch2\u003eCrawford Essentials EJ257 Short Block — Better Than OEM\u003c\/h2\u003e\n\u003cp\u003eThe replacement, done better than stock.\u003c\/p\u003e\n\u003cp\u003eWe start with a brand new, genuine Subaru OEM EJ257 short block (Part #10103AC870) and swap all the bearings for better bearings. Same factory block, crank, rods, and pistons. Stronger where stock is weak.\u003c\/p\u003e\n\u003cp\u003eThis is not a built motor. No forged internals, no power claims beyond stock. If you want power, buy a Crawford built block. If you need your car back, buy this.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNew genuine OEM short block, Part #10103AC870\u003c\/li\u003e\n\u003cli\u003eAll bearings swapped for upgraded bearings, done by Crawford\u003c\/li\u003e\n\u003cli\u003e$3532.47 — the stock block with its weak point fixed, done by Crawford. Substantially less than a built block.\u003c\/li\u003e\n\u003cli\u003eFits: WRX STI 2004–2021 (also EJ257 applications in Forester XT, Legacy GT, Outback XT — see the OEM EJ257 listing for the full fitment list).\u003c\/li\u003e\n\u003cli\u003eDo the job once: \u003ca href=\"\/products\/2008-2021-ej25-subaru-short-block-installation-kit\"\u003e2008–2021 EJ25 Short Block Installation Kit\u003c\/a\u003e (kits for earlier years are listed separately).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e Standard — the bearing swap is done in-house before it ships. Quick turnaround is the point of Essentials.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpedited (+$500):\u003c\/strong\u003e Choose Expedited and it ships within one week, as long as the parts are in stock.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShipping:\u003c\/strong\u003e Motors pay live carrier rates. No free shipping on motors.\u003c\/p\u003e\n\u003cp\u003eCrawford Essentials is our budget-friendly line: replacement parts that are better than OEM. Built for drivers. Not focus groups.\u003c\/p\u003e\n\u003cp\u003eWant it exactly as Subaru built it instead? See the \u003ca href=\"\/products\/new-subaru-oem-ej257-short-block-engine-part-10103ac870\"\u003estandard OEM EJ257 short block\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRead first:\u003c\/strong\u003e \u003ca href=\"\/blogs\/tech\/everything-you-need-to-know-about-your-subaru-engine\"\u003eEverything You Need to Know About Your Subaru Engine\u003c\/a\u003e — Crawford's engine guide.\u003c\/p\u003e\u003cp\u003eStep four of our reliability recipe is an Air\/Oil Separator. \u003ca href=\"\/blogs\/tech\/all-about-subarus-original-air-oil-separator-why-you-need-one\"\u003eHere's why every Subaru engine needs one.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eEJ255 or EJ257? \u003ca href=\"\/blogs\/tech\/ej255-vs-ej257-which-block-is-right-for-your-build\"\u003eWhich block is right for your build.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eRead: \u003ca href=\"\/blogs\/tech\/what-actually-kills-ej-motors\"\u003eWhat actually kills EJ motors.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eOur motors are built to order. \u003ca href=\"\/blogs\/tech\/what-built-to-order-actually-means-when-you-buy-a-motor\"\u003eWhat that actually means.\u003c\/a\u003e\u003c\/p\u003e","brand":"Crawford Performance","offers":[{"title":"Standard","offer_id":50614986113264,"sku":"S0790-ESS","price":3532.47,"currency_code":"USD","in_stock":true},{"title":"Expedited (+$500)","offer_id":50614986146032,"sku":"S0790-ESS-X","price":4032.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/9032\/0880\/files\/new-subaru-oem-ej257-short-block-engine-part-10103ac870crawford-performance-1831158.jpg?v=1753975049"},{"product_id":"crawford-essentials-subaru-ej255-short-block-upgraded-bearings","title":"Crawford Essentials Subaru EJ255 Short Block | Upgraded Bearings","description":"\u003ch2\u003eCrawford Essentials EJ255 Short Block — Better Than OEM\u003c\/h2\u003e\n\u003cp\u003eThe replacement, done better than stock.\u003c\/p\u003e\n\u003cp\u003eWe start with a brand new, genuine Subaru OEM EJ255 short block (Part #10103AC880) and swap all the bearings for better bearings. Same factory block, crank, rods, and pistons. Stronger where stock is weak.\u003c\/p\u003e\n\u003cp\u003eThis is not a built motor. No forged internals, no power claims beyond stock. If you want power, buy a Crawford built block. If you need your car back, buy this.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNew genuine OEM short block, Part #10103AC880\u003c\/li\u003e\n\u003cli\u003eAll bearings swapped for upgraded bearings, done by Crawford\u003c\/li\u003e\n\u003cli\u003e$3493.51 — the stock block with its weak point fixed, done by Crawford. Substantially less than a built block.\u003c\/li\u003e\n\u003cli\u003eFits: WRX 2006–2014 and other EJ255 applications (Forester XT, Legacy GT — see the OEM EJ255 listing for the full fitment list).\u003c\/li\u003e\n\u003cli\u003eDo the job once: \u003ca href=\"\/products\/2008-2021-ej25-subaru-short-block-installation-kit\"\u003eEJ25 Short Block Installation Kits\u003c\/a\u003e are listed by year — pick the kit for your car.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e Standard — the bearing swap is done in-house before it ships. Quick turnaround is the point of Essentials.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpedited (+$500):\u003c\/strong\u003e Choose Expedited and it ships within one week, as long as the parts are in stock.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShipping:\u003c\/strong\u003e Motors pay live carrier rates. No free shipping on motors.\u003c\/p\u003e\n\u003cp\u003eCrawford Essentials is our budget-friendly line: replacement parts that are better than OEM. Built for drivers. Not focus groups.\u003c\/p\u003e\n\u003cp\u003eWant it exactly as Subaru built it instead? See the \u003ca href=\"\/products\/new-subaru-oem-ej255-short-block-engine-part-10103ac880\"\u003estandard OEM EJ255 short block\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRead first:\u003c\/strong\u003e \u003ca href=\"\/blogs\/tech\/everything-you-need-to-know-about-your-subaru-engine\"\u003eEverything You Need to Know About Your Subaru Engine\u003c\/a\u003e — Crawford's engine guide.\u003c\/p\u003e\u003cp\u003eStep four of our reliability recipe is an Air\/Oil Separator. \u003ca href=\"\/blogs\/tech\/all-about-subarus-original-air-oil-separator-why-you-need-one\"\u003eHere's why every Subaru engine needs one.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eEJ255 or EJ257? \u003ca href=\"\/blogs\/tech\/ej255-vs-ej257-which-block-is-right-for-your-build\"\u003eWhich block is right for your build.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eRead: \u003ca href=\"\/blogs\/tech\/what-actually-kills-ej-motors\"\u003eWhat actually kills EJ motors.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eOur motors are built to order. \u003ca href=\"\/blogs\/tech\/what-built-to-order-actually-means-when-you-buy-a-motor\"\u003eWhat that actually means.\u003c\/a\u003e\u003c\/p\u003e","brand":"Crawford Performance","offers":[{"title":"Standard","offer_id":50614986178800,"sku":"S0794-ESS","price":3493.51,"currency_code":"USD","in_stock":true},{"title":"Expedited (+$500)","offer_id":50614986211568,"sku":"S0794-ESS-X","price":3993.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/9032\/0880\/files\/new-subaru-oem-ej255-short-block-engine-part-10103ac880crawford-performance-6281033.jpg?v=1757536524"}],"url":"https:\/\/crawfordperformance.com\/collections\/heritage-ej-engines-internals.oembed","provider":"Crawford Performance","version":"1.0","type":"link"}