SKU: M45-1009 M45 Stage 1.5 EJ25 Short Block for WRX, STI, Legacy GT, and Forester XT

M45 Automotive Subaru EJ25 Stage 1.5 Complete Remanufactured Short Block

At the core of our engine-building program, we are fully dedicated to doing our best and protecting our reputation. We use only the highest-quality components and specialized machining and assembly techniques, ensuring they perform well and last long. Our goal is to create top-notch engines that exceed expectations and last for a long time.

The engine case, using remanufactured case halves, has been subjected to a thorough Bore and Deck process. This includes precision boring and honing of the case halves, ensuring perfect fitment and alignment. A torque plate is utilized during the honing process to enhance the precision further, resulting in a flawless engine case that guarantees optimal performance. Central to the design of this short block is a OEM Subaru Nitrided Crank.

The engine boasts a premium Wiseco Subaru EJ257 WRX/STI 99.75 forged piston kit. Forged pistons, known for their exceptional strength and wear resistance, add significant value to the engine's performance and overall durability. If it's modified for more power, the stock pistons may not be able to withstand the increased stress. This is where forged pistons come in. We have also equipped the engine with high-grade piston rings and seals, improving the engine's compression and oil control. This not only amplifies the engine's efficiency but also bolsters its long-term durability.

The engine also incorporates resized connecting rods that have been carefully machined to ensure seamless fitment. Complementing these are hardened rod bearings and main bearings, crucial components that endure high-stress conditions and minimize wear, thereby extending the engine's lifespan.

In addition, this package comes with wrist pin and cover seals at no extra cost. These crucial components play a vital role in the engine's operation.

Core Charge

Unlike traditional practices, we do not require an up-front core charge when you purchase our product. Instead, we offer a convenient and hassle-free process for returning your old long block, ensuring a smooth transaction for both parties.

By making a purchase from us, you agree to promptly deliver your core (old long block) within 30 days from the date of purchase. It is crucial to adhere to this time frame to avoid any inconveniences. After the 30-day period, failure to return your core will result in the voiding of your warranty and a charge of $2500.

We pride ourselves on our commitment to customer satisfaction and understand that cores may have various issues. Rest assured, we accept your core regardless of its condition, as long as it matches the exact specifications of our head and includes all the parts that originally came with it.

Our streamlined core return process ensures that you can enjoy the benefits of your purchase while fulfilling your responsibility to return the core in a timely manner. We appreciate your cooperation in helping us maintain the quality of our products and guaranteeing a positive experience for all our valued customers.

Shipping

All of our Short Blocks and Long Blocks ship LTL Freight