Eagle Chevrolet 400 Forged Crankshaft

This product is the Eagle Chevrolet 400 forged crankshaft, designed for serious engine builds. You get a robust crankshaft forged from 4340 steel, featuring a 4.125-inch stroke and internal balance. This crankshaft is built to handle the rigors of high-performance applications.

The 4340 steel construction provides a strong foundation, and Eagle uses a non-twist forging process to ensure its integrity. The .125-inch fillet radii are chamfered, meaning you'll need narrowed bearings for installation, which helps increase the crankshaft's overall strength. To further enhance durability and wear resistance, the surface is nitrided and then micropolished. This combination of advanced materials and manufacturing techniques makes it a solid choice for engines that will be pushed hard.

When installing this crankshaft, remember that the chamfered fillet radii require the use of narrowed bearings. This is a critical detail for ensuring proper fitment and longevity of your engine build. This crankshaft is intended for the most demanding applications where reliability and strength are paramount.