The Ultimate Guide to the Crawford Short Block Install Kit

Every ambitious Subaru build has a roadmap. You’re dreaming of a bigger turbo, an aggressive tune, and the power that comes with it. But before you can get there, you need a foundation that won’t fail you—and the stock block is the weak link in that plan. Our Crawford short block install kit is the essential first step for any owner with serious performance goals. It reinforces your engine, allowing it to handle the stress of future upgrades. This is a proactive investment in your car’s future, ensuring your build is both powerful and durable. This guide explains why this foundation is non-negotiable.

Key Takeaways

• Get a Complete, Curated Solution: The kit provides every high-quality component you need in one box, from genuine gaskets to break-in oil. This saves you from the time-consuming and risky process of sourcing individual parts.
• Build a Stronger Foundation for More Power: This kit isn't about instant horsepower; it's about reinforcing your engine with durable parts like forged pistons and ARP head studs. This allows your engine to safely handle aggressive tunes and future performance upgrades.
• Install with Confidence, DIY or Pro: Whether you're tackling the build yourself or handing it to a mechanic, the kit is designed for a straightforward installation. With detailed instructions and expert support available, you have the resources for a successful build.

Understanding the Basics: What is a Subaru Short Block?

Think of a Subaru short block as the heart of your engine. It's the core assembly that forms the literal foundation for every other performance part you plan to add. This isn't just a single component; it's the engine block itself, complete with the crankshaft, connecting rods, and pistons already installed. For anyone planning to add a bigger turbo or run a more aggressive tune, starting with a solid short block is non-negotiable. It’s built to handle the increased stress and power that would overwhelm a standard factory engine, providing the strength and reliability your build needs to perform without compromise. It's the essential starting point for any serious performance build.

What a Factory Short Block Includes

When you get a new short block, you're receiving the entire bottom end of your engine, professionally assembled and ready for your cylinder heads. This package includes the engine block, crankshaft, connecting rods, and pistons, all fitted with the correct bearings and seals. Essentially, it’s the rotating assembly that does the heavy lifting inside your motor. This pre-assembled unit saves a massive amount of time and removes the guesswork from one of the most critical parts of an engine build. It provides a pristine, reliable foundation, ensuring all the core components are perfectly matched and ready to support your performance goals right out of the box.

Why You Need an Installation Kit

Installing a new short block isn't the whole story. To do the job right, you need a host of supporting parts, and that’s where an installation kit becomes essential. A new short block requires new gaskets, seals, hardware, and specific fluids to ensure it integrates perfectly with the rest of your engine. Trying to source all these items individually is time-consuming and risky. Our Subaru Short Block Installation Kits provide a complete, curated solution with every high-quality component you need for a successful rebuild. This includes crucial items like Motul break-in oil, which protects your engine during its most critical first miles, ensuring longevity and reliable performance.

What's Included in the Crawford Short Block Install Kit?

When you decide to build your engine, you want confidence that every single component is up to the task. The Crawford Short Block Installation Kit isn't just a box of parts; it's a complete, thoughtfully curated solution designed to make your build successful and reliable. We’ve included everything you need, from the core components to the fluids for the critical break-in period. Let’s take a look at what makes this kit the go-to choice for Subaru enthusiasts.

Premium Gaskets and Seals for a Perfect Fit

A high-performance engine is worthless if it can't hold itself together. That's why a proper seal is non-negotiable. Leaks are the enemy of power and reliability, so we don't cut corners. Each kit includes a full set of genuine gaskets to ensure a perfect fit and lasting seal. You’ll find genuine head gaskets, intake and exhaust manifold gaskets, and a water pump gasket. Using these premium performance parts means you can assemble your engine with the confidence that it’s sealed tight and ready to handle the pressure, keeping fluids where they belong.

Comprehensive Gasket Coverage

In a high-performance engine, gaskets are the unsung heroes that hold everything together. They create the critical seals that manage intense pressure and keep vital fluids contained. A single failed gasket can quickly turn a powerful build into a catastrophic failure, which is why this is one area where you can't afford to compromise. Our Short Block Installation Kit includes a complete set of genuine Subaru gaskets—from head gaskets to intake and exhaust manifold gaskets and even the water pump gasket—to guarantee a leak-free assembly.

This all-in-one approach saves you the headache of sourcing individual parts and eliminates any guesswork about compatibility. We've already handled that for you. Using genuine, high-quality components ensures a perfect fit and a durable seal that’s built to withstand the demands of a tuned engine. This level of detail is what separates a reliable, confidence-inspiring build from one that leaves you worrying. It’s about assembling your engine with the certainty that every seal is secure and ready for the power you plan to unleash.

Components Engineered for Performance

The heart of this kit lies in its high-performance components, designed to handle serious power. We include a set of our Crawford SPEC JE Forged Pistons, which are not only incredibly strong but also SCCA-approved for racing. Forged pistons offer a massive strength advantage over the stock cast pistons, making them essential for anyone planning to add a bigger turbo or run higher boost. These are the same type of robust components we use in our own record-setting builds, so you know you're getting parts that have been tested and proven in the most demanding environments.

Genuine Subaru Oil Pump and Main Seal

Proper lubrication is the lifeblood of your engine, and the oil pump is its heart. When you increase power, you also increase stress and heat, making consistent oil pressure more critical than ever. That’s why our kit includes a genuine Subaru oil pump and main seal. Using an OEM part guarantees a perfect fit and the reliability your built engine deserves. This component ensures your engine maintains optimal oil pressure, which is absolutely crucial for the longevity and reliability of your motor, especially when it’s handling the demands of a more aggressive tune or a larger turbo.

NGK Iridium "One Step Colder" Spark Plugs

In a high-performance engine, managing heat is key to preventing disaster. The NGK Iridium Spark Plugs included in our kit are "one step colder" than stock. This means they are designed to transfer heat away from the combustion chamber more quickly. This feature is essential for preventing pre-ignition and detonation—two conditions that can cause catastrophic engine failure in a modified Subaru. By running a colder plug, your engine can operate more efficiently and reliably, especially when it has been tuned for higher power output, giving you peace of mind when you're pushing your car to its limits.

Why ARP Head Studs Are Included

In a high-compression engine, factory head bolts can stretch, leading to head gasket failure—a nightmare for any owner. To prevent this, our kits include a set of 11mm ARP Head Studs. ARP is the gold standard in performance fasteners for a reason. These studs provide a much more consistent and accurate clamping force on the cylinder head, ensuring your head gasket stays sealed even under extreme stress. It’s a critical upgrade that provides peace of mind and protects the investment you've made in your engine build.

Break-In Oil and Filters for Engine Health

The first few miles on a new engine are the most important of its life. A proper break-in procedure is crucial for seating the piston rings and ensuring long-term health. We make it easy by including everything you need for that first oil change. Each of our Subaru Short Block Installation Kits comes with five quarts of Motul Break-In Oil and a high-quality K&N Oil Filter. This takes the guesswork out of the process and ensures your engine gets the specific protection it needs from the very first start-up.

What Tools Do You Need for Installation?

We designed our installation kits to be as straightforward as possible, whether you're a seasoned mechanic or a dedicated DIYer tackling your first engine build. Each kit comes with detailed instructions to guide you through the process step-by-step. While the build requires standard mechanic's tools and a certain level of comfort working on engines, our goal is to make it an accessible project. And if you've finished the build and need to get it dialed in, our expert engine tuning services can help you safely maximize your new setup's potential.

How Much Does the Crawford Install Kit Cost?

When you’re ready to build a stronger heart for your Subaru, understanding the investment is the first step. The cost isn't just about the parts themselves; it's about the quality, engineering, and peace of mind that come with them. A high-quality short block kit is the foundation for reliable power, whether you're prepping for the track or a weekend on the trails. Let's walk through the numbers so you can plan your build with confidence. We'll cover everything from the base kit pricing to complete engine solutions and even how you can save a little money along the way.

Understanding the Base Kit Price

Let's get straight to it. The install kits from Crawford Performance typically run between $699.95 and $799.99, especially when you catch a sale. This price point gets you a comprehensive package designed to support your new short block with top-tier components. You’re not just buying a box of parts; you’re investing in a meticulously curated set of gaskets, seals, and hardware that ensures a perfect fit and lasting reliability. This initial cost covers the essential, high-quality components needed to do the job right the first time, preventing costly issues down the road.

No Core Fee Required

One of the biggest hassles—and hidden costs—of engine work is the core fee. It’s an extra deposit you pay for a new part, which is only refunded after you ship your old, used part back. This process is a logistical headache that ties up your money and adds unnecessary steps to your build. We’ve eliminated that problem entirely. Because our Subaru Short Block Installation Kits are built with all-new, premium components, there's no old part to return. That means no core fee is required, period. You can keep your old block for a future project or simply avoid the trouble of packaging and shipping a heavy engine component, making the entire process more affordable and straightforward.

How Pricing Changes for Your Subaru Model

Your Subaru is unique, and your install kit should be too. Crawford Performance offers over 10 different Subaru short block installation kits and built short blocks, ensuring there’s a perfect match for your specific model, from a track-focused WRX or STI to an adventure-ready Crosstrek. Because each kit is tailored to the specific needs of different engines and vehicle generations from 2002 to the present, you’ll see slight variations in price. The key is that you’re getting a solution engineered for your exact setup, not a one-size-fits-all compromise. All options are typically in stock and ready to ship, so you can get your project started without delay.

Considering a Complete Built Short Block?

If you're looking for a more comprehensive, drop-in solution, a complete built short block is the way to go. These assemblies are priced between $4,999.00 and $5,299.99 during sales events. This is a significant investment, but it’s ideal for enthusiasts who want maximum performance and reliability without the guesswork of assembling the core components themselves. A built short block arrives ready for your heads and accessories, saving you time and ensuring the engine's foundation is assembled to exacting professional standards. It’s the perfect choice for high-horsepower builds or for anyone who wants a proven, ready-to-install powerhouse.

Power Handling of Crawford Built Blocks

When you're planning a build that goes beyond stock power levels, the engine's ability to handle stress becomes the top priority. Our built blocks are engineered precisely for this purpose, providing a robust foundation for significant power gains. The inclusion of Crawford SPEC JE Forged Pistons is a game-changer; their superior strength over stock cast pistons is essential for safely running a larger turbo or higher boost pressures. This upgrade isn't just about strength; it's about reliability when you push your engine hard. We pair these pistons with 11mm ARP Head Studs, the industry standard for high-performance fasteners. These studs deliver a consistent and accurate clamping force, ensuring your head gasket remains sealed under extreme combustion pressure, which is a common failure point in modified engines. Together, these components create a powerhouse foundation ready for whatever performance parts you decide to add next, giving you the confidence to chase higher horsepower without compromising durability.

Don't Forget Professional Installation Costs

One of the best things about these kits is their design philosophy. They are engineered to be straightforward enough for a confident DIY mechanic to handle. Each kit comes with detailed instructions that guide you through the process, which means you could potentially save thousands on labor costs by tackling the installation yourself. Of course, not everyone has the time, tools, or space for an engine build. If you choose to have a professional shop handle the work, be sure to factor their labor rates into your total budget. Getting a few quotes from trusted local Subaru specialists is always a smart move.

How to Find Deals and Promotions

Who doesn't love a good deal? Crawford Performance runs promotions from time to time that can offer significant savings. For example, a recent sale saw a $600 price drop on one of their popular S2 models. To make sure you don’t miss out, it’s a good idea to subscribe to their newsletter or follow them on social media. Being patient and keeping an eye out for these deals can make a big difference in your total build cost, freeing up funds for other performance parts or professional tuning to complete your project.

What to Expect: Performance and Tech Specs

So, what can you actually expect from a Crawford Short Block Install Kit? This is where we get into the details of what these components can do for your Subaru. From engine compatibility to the horsepower you can unlock, every part in this kit is chosen to create a stronger, more reliable foundation for your build. Whether you're aiming for a competitive track car or a daily driver with a serious kick, understanding the technical side of things will show you why this is more than just a collection of parts—it's a comprehensive solution for performance. Let's look at the specifics.

Will This Kit Fit Your Engine?

First things first, you need to make sure the kit is right for your car. Crawford designs its Subaru Short Block Installation Kits for enthusiasts who are rebuilding their engine or installing a new short block. These kits are tailored for a wide range of Subaru models from 2002 to the present, including the WRX, STI, Crosstrek, Impreza, and Forester. The key is that these aren't just standard replacement parts; they are performance upgrades. Each kit is engineered to support the specific demands of your Subaru’s engine, ensuring a perfect fit and providing the robust foundation needed for higher power output and greater durability.

Compatibility for EJ Series Engines

If you're driving a Subaru with the iconic EJ series engine, you understand its potential and its limits. Our Short Block Installation Kit is specifically designed for these powerplants, including the legendary EJ25 found in models like the 2008-2014 WRX and the 2008-2021 WRX STI. This kit is a complete reinforcement package, providing everything recommended for a rebuild. It ensures your engine is prepared to handle the increased stress that comes with bigger turbos and more aggressive tunes. By building this strong foundation, you’re giving your Subaru STI the durability it needs to support all your future power goals reliably.

Compatibility for FA Series Engines

For owners of modern Subarus with the FA20 DIT engine, pushing beyond stock capabilities requires a solid plan. Our Short Block Installation Kit is tailored to meet the specific demands of this direct-injection engine. The kit includes crucial high-performance components, like our Crawford SPEC JE Forged Pistons, which are essential for reliably handling increased power levels. This solution is perfect for enthusiasts who want to get more from their FA20 engine without sacrificing dependability. It provides the robust internal components necessary to support higher boost and more power, turning your modern Subaru WRX into a true performance machine.

How Much Power Can You Really Gain?

While a short block kit is fundamentally about building a stronger engine, it also paves the way for significant power increases. The high-quality components allow your engine to handle more aggressive modifications and tuning safely. For example, Crawford's Power Blocks have been shown to add around 19 horsepower on their own. However, the true potential is unlocked when you pair your new build with professional engine tuning services. A solid foundation from the Crawford kit means your tuner can push the limits further, giving you a more powerful and responsive driving experience without compromising the engine's integrity. It’s about building a motor that can take the heat.

Technical Specs Your Build Needs to Meet

A successful engine build is all about the details. The Crawford kit includes high-performance components like the SCCA-approved Crawford SPEC JE Forged Pistons, which tells you they’re built for serious driving. While the kit provides the core essentials, you’ll need the right tools and a clean, organized space to assemble everything correctly. This isn't a simple bolt-on job; it's a full engine build. You should be comfortable with engine mechanics or plan to work with a trusted professional. The goal is to match the quality of your assembly work with the quality of the performance parts you’re installing for a reliable, high-output result.

A Quick Guide to the Installation Process

The thought of an engine rebuild can feel intimidating, but you’re not going in blind. Crawford designs its kits to be as straightforward as possible, providing detailed instructions to guide you through the process. This makes the project more approachable, whether you’re a seasoned mechanic or a dedicated DIYer tackling your first major build. The clear guidelines help ensure every seal, gasket, and stud is installed correctly, which is critical for engine longevity and performance. By following the steps, you can confidently assemble a motor that’s built to last and perform exactly as it was engineered to.

How to Maintain Your New Engine

Investing in a quality short block kit is a smart move for the long haul. Opting to rebuild with premium components is often a more cost-effective solution than buying a brand-new crate engine. More importantly, you’re building an engine that’s stronger than stock. The durability of forged pistons and high-quality hardware means your engine is better equipped to handle stress, reducing the likelihood of future failures. This proactive approach to building a reliable motor means less time worrying about potential issues and more time enjoying the drive. It’s an investment in both performance and peace of mind.

Is the Crawford Kit a Good Investment?

Deciding on a major engine upgrade is a big step, and you want to be sure you're putting your money into something that delivers on its promises. The Crawford Short Block Install Kit is designed to be more than just a box of parts; it’s a comprehensive solution for building a stronger, more reliable Subaru engine. Whether you're recovering from an engine failure or proactively building for more power, this kit provides the foundation you need.

Investing in your engine is about balancing cost, performance, and peace of mind. You want high-quality components that work together perfectly, the durability to handle spirited driving, and the assurance that you’re making a smart long-term decision. Let's break down what makes the Crawford kit a solid choice for your build and address some of the real-world considerations you should have in mind.

Why Premium Components Matter

When you open a Crawford Short Block Install Kit, you’ll find a curated selection of high-quality parts needed for a proper engine build. This isn't a random assortment; each component is chosen to ensure a perfect fit and reliable performance. The kit includes genuine Subaru gaskets for the heads, intake, and exhaust manifolds, so you don't have to worry about leaks. It also comes with a new oil pump, ARP head studs, NGK spark plugs, and even Motul break-in oil. Having all these premium parts in one box saves you the headache of sourcing everything individually and ensures you’re not missing a critical seal or gasket mid-install.

The Reliability of Genuine OEM Parts

When you're building a high-performance engine, every single part has to work in perfect harmony. That's why we insist on including genuine OEM gaskets and seals in our kits. These aren't just any gaskets; they are the exact components Subaru designed for your engine, which guarantees a flawless fit for critical areas like the head gaskets and intake manifold. This creates a perfect seal that prevents leaks under pressure. In a high-stress environment, a small leak can lead to big problems, compromising power and risking engine damage. By using reliable OEM parts for these foundational components, you create a solid, leak-free base, allowing the other performance upgrades to do their job effectively. It’s about building a powerful engine that you can also trust.

Engineered for Long-Term Durability

Reliability is the main goal here. The kit is built around genuine, OEM-quality components to ensure your engine runs safely and performs consistently for years to come. By avoiding cheap, aftermarket alternatives, you’re investing in longevity. For those seeking even higher performance, Crawford’s built blocks feature custom-designed Crawford SPEC JE Forged Pistons. These pistons are SCCA-approved, which means they are tough enough to handle the extreme demands of racing and high-performance driving. This focus on durability makes the kit a great foundation whether you’re building a dependable daily driver or a dedicated track car.

What Does the Crawford Warranty Cover?

Peace of mind is crucial when you’re investing in your engine. While the install kit itself contains individual components, Crawford Performance stands behind its complete engine assemblies. If you opt for one of their fully built short blocks, you’re covered by a 12-month or 12,000-mile warranty. This coverage shows confidence in their workmanship and the quality of the parts they use. It protects your investment against defects and gives you the assurance you need to push your Subaru with confidence, knowing that the heart of your vehicle was built to last and is backed by the experts who assembled it.

A Smart Upgrade for Your Engine's Future

Rebuilding your engine with a Crawford kit is a strategic move for any Subaru owner. Instead of spending a fortune on a brand-new crate engine, you can build a stronger, more capable motor for a fraction of the cost. This approach not only saves you money upfront but also adds significant value to your vehicle. You’re replacing failure-prone stock parts with components designed for higher stress and power output. This proactive upgrade can prevent future engine issues, making it a smart investment in the long-term health and performance of your Subaru WRX.

Why Drivers Trust the Crawford Name

We know that a company’s reputation is built on trust and transparency. As a high-demand shop specializing in custom performance builds, we’ve faced challenges with lead times, and we understand the frustration that delays can cause. We are actively working to improve our processes and communication to provide more accurate build times and clearer updates on product availability. Our goal is to match our legendary engineering with a customer experience that gives you total confidence. We’re committed to our community and are always here to answer your questions and support your build from start to finish.

Installation Support: DIY vs. Pro

Deciding to upgrade your engine is exciting, but the installation process can feel like the biggest hurdle. Whether you’re a seasoned mechanic or handing the keys over to a pro, a smooth installation is key to getting the performance you expect. We design our kits to be as straightforward as possible, but we also know that questions come up. That’s why we’ve built a strong support system to help you through every step of the process, from unboxing your kit to breaking in your new engine. You’re not just buying parts; you’re getting a partner for your build. We’re here to make sure you have the resources and guidance you need to get your Subaru back on the road or track, performing better than ever.

Finding a Professional Installer

If you prefer to have a professional handle the installation, our kits are designed to make their job easier. Each Subaru short block installation kit is a comprehensive package, containing all the necessary gaskets, seals, and hardware a technician needs for a rebuild or swap. This saves your mechanic time sourcing small but critical components, reducing the risk of delays. Simply bring the complete, unopened kit to your trusted Subaru specialist, and they’ll have everything required for a seamless assembly. This all-in-one approach ensures that high-quality, compatible parts are used throughout your build, giving you peace of mind that the job is done right.

Tips for the DIY Engine Builder

For those of you who love getting your hands dirty, our kits are made for you, too. We believe that with the right parts and clear guidance, a home installation is absolutely achievable. Every kit comes with detailed instructions to walk you through the process. We’ve taken the guesswork out of the equation by including every component you’ll need, so you won’t have to make last-minute trips to the auto parts store. By providing a complete solution, we empower you to take control of your build and feel the satisfaction of installing your own performance parts. It’s a challenging but incredibly rewarding project for any dedicated Subaru enthusiast.

Where to Find Technical Support

Even the most carefully planned installation can hit a snag. If you find yourself with a question or run into an unexpected issue, we’re here to help. Our technical support team is just an email or phone call away, ready to provide the expert advice you need to keep your build moving forward. You might even get the owner, Mark Schlächter, on the line, as he personally answers calls to help customers directly. This level of access to expertise is part of our commitment to your success. Think of us as part of your pit crew, ready to assist with everything from torque specs to troubleshooting.

First Steps in Caring for Your New Engine

Once your new engine is installed, the first few miles are the most important. Proper engine break-in is critical for ensuring long-term performance and durability. That’s why every installation kit includes a bottle of Motul Break-In Oil. We recommend driving with this oil for at least 1,000 miles to allow the piston rings to seat correctly and for all components to settle in. Following this procedure is the best way to protect your investment and get the most out of your Subaru WRX upgrades. Taking the time to do it right from the start will pay off with a reliable, powerful engine for years to come.

Crawford vs. The Competition: How Do They Compare?

When you’re ready to strengthen your Subaru’s engine, you’ll find a few different paths you can take. You could piece together parts from various manufacturers, or you could opt for a comprehensive kit from a trusted name like Crawford Performance. Let’s break down how our approach stands out and what it means for your build.

A Side-by-Side Feature Breakdown

One of the biggest challenges of an engine build is sourcing all the correct parts. When you compare a Crawford kit to buying components individually, the main difference is convenience and compatibility. Our Subaru Short Block Installation Kits are designed to be a complete solution. Instead of spending hours cross-referencing part numbers and placing orders with multiple vendors, you get everything you need in one box. This includes all the specific gaskets, seals, and hardware that are often overlooked. While other brands might sell individual components, Crawford provides a curated package engineered to work together seamlessly, taking the guesswork out of your build.

Comparing Price and Long-Term Value

Looking at the price tag, our installation kits typically range from about $700 to $800, while a complete built short block is a more significant investment. It’s tempting to try and save money by sourcing parts yourself, but it’s important to consider the total value. The cost of a Crawford kit reflects the quality of the components and the research and development behind it. When you factor in shipping costs from multiple suppliers and the risk of ordering an incorrect part, a comprehensive kit often proves more cost-effective. You’re not just buying parts; you’re investing in a reliable solution that protects your engine and saves you from potential headaches and costly rebuilds down the road.

The Crawford Difference: A Focus on Quality

At Crawford Performance, our reputation is built on decades of Subaru expertise, and that experience is poured into every kit we assemble. We prioritize using high-quality, genuine parts to ensure your engine runs smoothly and reliably for years to come. Unlike some alternatives that might include lower-grade components to cut costs, we believe in building a foundation that can handle serious power. Our focus isn't just on selling performance parts; it's on providing engineered solutions that we stand behind. This commitment to quality is why so many enthusiasts trust us with their engine builds, from daily drivers to track-dedicated machines.

Advanced Piston Design for Quieter Operation

When you’re building a high-performance engine, you shouldn't have to sacrifice comfort for power. That’s why our kits feature advanced piston technology designed to deliver both. A standout component is the set of Crawford SPEC JE Forged Pistons included in every kit. Not only are these pistons incredibly strong and SCCA-approved for racing, but they also incorporate an innovative design with offset wrist pins. This specific engineering helps reduce engine noise, a common concern for enthusiasts with built motors. Forged pistons offer a massive strength advantage over the stock cast parts, making them essential for anyone planning to add a bigger turbo or run higher boost. This combination of robust engineering and thoughtful design ensures your engine can handle the stress of high-performance driving while providing a quieter, more refined experience.

Performance Gains: Crawford vs. Other Kits

So, what kind of performance benefits can you expect? It’s important to understand that a short block installation kit isn't designed to add horsepower on its own. Instead, its primary benefit is providing the strength and reliability your engine needs to handle more power from other modifications. If you’ve already upgraded your turbo or are planning an aggressive tune for your Subaru WRX, the stock engine block is often the weakest link. The Crawford kit reinforces that foundation, allowing you to safely push for higher power levels without risking catastrophic engine failure. It’s the critical supporting upgrade that makes bigger power goals possible.

Real Reviews from Subaru Owners

If you browse online forums, you’ll find plenty of discussions about the best upgrade paths. Some drivers might suggest that a tune or headers offer better initial gains for the money, and for a stock vehicle, they’re not wrong. However, those conversations often miss the context of a larger build plan. The Crawford short block kit is for the driver who has moved beyond basic bolt-ons and is pushing the limits of the stock engine. For these enthusiasts, the kit isn’t about small, incremental gains—it’s a necessary step for building a motor that can reliably handle significant power. It’s about shifting from simple mods to a serious, durable performance build.

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Frequently Asked Questions

Does this installation kit add horsepower to my Subaru? Think of this kit as the foundation for more power, not a direct horsepower-adding part itself. Its main job is to make your engine strong enough to handle the stress that comes from bigger turbos, aggressive tunes, and other performance modifications. By replacing weaker stock components with high-quality parts, you create a reliable base that allows you and your tuner to safely push for more power without risking engine failure.

Is this something I can realistically install myself at home? If you are comfortable with major mechanical work and have the right tools, then yes, this project is definitely within reach. We designed these kits to be as straightforward as possible and include detailed instructions to guide you. It’s a significant undertaking, but we provide all the specific gaskets, seals, and hardware in one box to prevent headaches. If you get stuck, our technical support team is available to help you through it.

What’s the difference between this install kit and a complete built short block? The installation kit contains all the essential components you need to properly assemble a new or existing short block into your engine. This includes gaskets, seals, head studs, and break-in oil. A complete built short block is the pre-assembled core of your engine, including the block, crank, rods, and pistons. You would use our installation kit when putting a built short block together with your cylinder heads and other components.

Why should I buy this kit instead of sourcing all the parts myself? While you could hunt down each part individually, our kit saves you the time and uncertainty of that process. We’ve already done the work of selecting high-quality, compatible components that are proven to work together. This ensures you don't accidentally order the wrong gasket or forget a critical seal, which could delay your build. It’s a curated solution that guarantees you have the right parts for the job, all in one box.

Is the warranty only for complete built short blocks? Yes, our 12-month/12,000-mile warranty applies specifically to our fully assembled short blocks. This is because we can stand behind the quality of the assembly when it's done by our expert technicians to our precise standards. The installation kit itself is a collection of high-quality individual parts, and while each component is top-tier, we can't warranty the final assembly when it's completed outside of our shop.