Eagle Subaru EJ257 w/Forced Induction 100mm Bore H-Beam Rods 4340 Crank Stroker Rotating Assembly

Starting with a 3.268-inch billet 4340 crankshaft, this Eagle rotating assembly is built for serious performance in Subaru EJ25 engines, especially those running forced induction or nitrous. The 4340 steel construction of the crank offers a strong foundation for high-horsepower builds, providing the durability needed for demanding racing applications.

Complementing the crankshaft are 5.137-inch H-beam connecting rods, known for their robust design and ability to handle significant stress. These rods are paired with 3/8-inch ARP 2000 bolts, a popular choice for their strength and reliability in performance engine builds. The assembly includes forged 2618 aluminum pistons with an inverted dome design, measuring 100mm in bore size and featuring a -17.1cc dish volume, which helps achieve a desired compression ratio for boosted applications. These pistons come with plasma-moly file-fit rings, allowing for precise gap setting to optimize performance and sealing.

To ensure smooth operation and proper lubrication, the kit includes King XP series rod and main bearings. These bearings are well-regarded for their performance characteristics and ability to withstand the rigors of a high-output engine. Please note that this assembly is not CARB approved and cannot be shipped to California. It's essential to consult with your engine builder or refer to manufacturer specifications for complete installation details and compatibility with your specific Subaru EJ25 engine setup.