Eagle Chevrolet 400 Small Block 3.75in Stroke External Balance Cast Crank Shaft

With .092" fillet radii, this Eagle cast crankshaft offers an improved level of strength over a stock unit, while still allowing the use of original equipment replacement bearings. This makes it a solid choice for rebuilding or upgrading your Chevrolet 400 small block engine. It’s designed as a direct replacement and an upgrade from an OE crankshaft, giving you more confidence in your engine's foundation.

This crankshaft is recommended for pump-gas, naturally-aspirated street cars that aren't used for competition. The cast construction is well-suited for these applications, offering a good balance of durability and cost-effectiveness. The 3.75-inch stroke provides a good foundation for building a reliable street engine, and its external balance means it's designed to work with specific harmonic balancers and flywheels for that setup.