SBC 4340 Forged Crank - 3.480 Stroke - L/W

The EAGLE SBC 4340 Forged Crank with 3.480 stroke is designed for small-block Chevrolet engine builders who require a high-strength rotating assembly for performance applications. This crankshaft is ideal for those building street engines, road-course racers, or turbocharged platforms that demand durability and reliability.

Constructed from 4340 alloy forged steel, this crankshaft offers superior tensile strength and fatigue resistance compared to cast iron alternatives. The 3.480-inch stroke is a classic dimension that enhances mid-range torque while maintaining RPM headroom, making it suitable for both naturally aspirated and forced-induction builds. The design optimizes counterweight geometry to reduce rotational mass, improving throttle response.

Engine builders focused on high-performance applications will benefit from the EAGLE SBC 4340 Forged Crank, as it is engineered to handle elevated boost and increased cylinder pressures. This crankshaft is compatible with standard small-block Chevy main and rod bearing sizes, ensuring a seamless fit in various builds.