Eagle Subaru EJ20/EJ25 79mm Stroke 4340 Billet Crankshaft

Forged from solid 4340 billet steel, this Eagle crankshaft is built for the demands of high-performance Subaru EJ20 and EJ25 engines. It features a 79mm stroke, offering a good balance for builds seeking improved displacement without excessive piston speed. The crankshaft is nitrided and micropolished for a hard, smooth surface that works well with bearing materials and helps reduce friction.

Eagle specifies a .125" fillet radius on this crank, which is a notable design choice for added strength. Because of this, you'll need to use chamfered or narrowed bearings to ensure proper clearance and oil flow. This crankshaft is designed with dual thrust location, providing enhanced stability for the crankshaft under load. This is a solid foundation for rebuilding or upgrading your Subaru's engine, especially if you're pushing beyond stock power levels.

When installing this crankshaft, remember to follow the manufacturer's detailed instructions. Proper cleaning, bearing selection, and assembly are critical for the longevity of your engine build. This crankshaft is a significant component for anyone serious about building a robust EJ-series engine.