BBC 4340 Forged Crank - 4.000 Stroke

The BBC 4340 Forged Crank with 4.000 stroke is an essential component for serious big-block Chevrolet rebuilds. Designed for high-performance street and competition applications, this forged crankshaft provides the necessary stroking geometry to enhance engine performance. Whether you're building a drag racer or a street cruiser, this crankshaft is engineered to meet the demands of high-output builds.

Constructed from EAGLE's 4340 chrome-moly forged steel, this crankshaft offers superior fatigue resistance compared to traditional cast iron cranks. It is capable of handling the extreme stresses associated with high-RPM operation, forced induction, and nitrous systems. The 4.000-inch stroke increases piston velocity, providing a mechanical advantage for improved torque and mid-range response.

Engine builders and mechanics will find the BBC 4340 Forged Crank ideal for enhancing durability and performance in big-block Chevrolet engines. It pairs seamlessly with compatible piston-and-rod assemblies, standard BBC flywheels, and both stock and high-flow oiling systems, making it a versatile choice for various performance builds.