BBC 4340 Forged Crank - 3.766 Stroke 396ci

The BBC 4340 Forged Crank from EAGLE is a precision-engineered crankshaft designed specifically for big block Chevrolet (BBC) engine builds. This 3.766 stroke crankshaft is ideal for both enthusiasts and professional builders who require reliability in high-performance applications, from street engines to competitive platforms.

Constructed from forged 4340 steel, the BBC 4340 Forged Crank offers superior strength and fatigue resistance compared to cast alternatives, making it capable of handling peak combustion pressures while maintaining dimensional stability under extreme loads. Its internal balance design eliminates the need for external counterweights, simplifying installation and reducing complexity during engine assembly.

This crankshaft is best suited for big block Chevrolet engines where the stroke length directly influences displacement and low-end torque characteristics. The 3.766 inch stroke provides a balance between street drivability and moderate RPM capability, making it an excellent choice for builders focused on performance and reliability.