BBC 4340 Forged Crank - 4.500 Stroke

The BBC 4340 Forged Crank - 4.500 Stroke is a high-performance crankshaft designed for serious engine builders. This component is suitable for various applications, including street performance, racing, and engine rebuilds, making it a versatile choice for automotive enthusiasts.

Manufactured from premium 4340 alloy steel, this forged crankshaft is engineered to withstand high RPMs and elevated cylinder pressures. The 4.500-inch stroke enhances piston travel, positively affecting engine displacement and torque characteristics. Its forged construction improves material strength, reducing the risk of flex and micro-fracturing compared to cast alternatives.

This crankshaft is ideal for builders looking to increase engine displacement and performance across various applications, from marine duty to drag racing. Proper balancing with compatible pistons and rods is essential for optimal performance, requiring professional assembly knowledge.