Eagle Chevrolet BB 4.000in Stroke Int Balance Center Counterweighted Forged 4340 Steel Crankshaft

Eagle is well-known for making strong rotating assembly components for performance engines. This Eagle crankshaft is built for Chevrolet Big Block engines and features a 4.000-inch stroke with internal balancing and center counterweights. This design helps keep the crankshaft stable and running smoothly, even when you're pushing your engine hard at high RPMs and high power levels.

Constructed from forged 4340 steel, this crankshaft starts with a non-twist forging process, ensuring a solid foundation. The center counterweights are a key feature for added stability in demanding applications. To further enhance its strength and durability, the crankshaft has 125-inch fillet radii, which means you'll need to use chamfered or narrowed bearings. The surface is nitrided and then micropolished, providing a hard, wear-resistant finish that's ready for serious use.

This crankshaft is intended for the most demanding applications where reliability and performance under stress are critical. It's designed for Chevrolet Big Block engines and is internally balanced. Remember that due to the 125-inch fillet radii, you will need to use chamfered or narrowed bearings for proper installation.