Eagle Subaru Ej25 3.110in Billet Crank 5.137in H-Beam -15.5cc 100mm Pistons Rotating Assembly

This Eagle rotating assembly gives you the core components to rebuild or upgrade your Subaru EJ25 engine. What you get in this kit is a 3.110-inch billet 4340 crankshaft, a set of 5.137-inch H-beam connecting rods equipped with 3/8-inch ARP 2000 bolts, 100mm forged 2618 aluminum pistons with a -15.5cc inverted dome, plasma-moly file-fit piston rings, and King XP rod and main bearings. This is a well-built package designed for serious performance applications.

The billet 4340 steel crankshaft is a strong foundation for high-horsepower builds, and the H-beam connecting rods are known for their durability under stress, especially when paired with ARP 2000 bolts. The forged 2618 aluminum pistons are lightweight and strong, featuring an inverted dome design to work with specific combustion chamber shapes, and they come with plasma-moly file-fit rings, which allow for precise gap setting crucial for optimal sealing and performance, especially with forced induction or nitrous. The included King XP bearings are a popular choice for their robust construction and ability to handle high loads.

This assembly is intended for competition use, including applications with nitrous and forced induction. Please note that this part is not CARB approved and cannot be shipped to California. It's always a good idea to consult your engine builder or a professional mechanic to ensure this rotating assembly is the right fit for your specific EJ25 build goals and to discuss any other components you might need, such as gaskets, seals, or fasteners, to complete your engine assembly.