Eagle Chevy LS 58T 3.622in 4140 Forged Crankshaft

If you're building a high-performance Chevrolet LS engine for competition, a strong crankshaft is the heart of the operation. This Eagle forged 4140 steel crankshaft is built to handle the demands of racing and serious performance builds.

Eagle starts with a non-twist forging of 4140 steel, a material known for its strength and durability. They've incorporated .125" fillet radii, which are chamfered or narrowed to work with specific bearings, adding to the overall robustness of the crank. The surface is nitrided and then micropolished, a process that hardens the exterior for better wear resistance while ensuring smooth operation. This crankshaft features a 3.622" stroke and includes a 58-tooth reluctor wheel, essential for modern LS engine management systems.

This crankshaft is intended for competition use, meaning it's designed for applications where reliability under extreme stress is paramount. When building a powerful LS engine, starting with a well-built crankshaft like this Eagle unit sets a solid foundation for your project.