BBC L/W 4340 Forged Crank - 4.000 Stroke

The BBC L/W 4340 forged crank with 4.000 stroke is essential for high-performance big-block Chevrolet engine builds, catering to serious enthusiasts and professional builders aiming for maximum displacement and power output. This crankshaft allows for the transformation of stock engine architecture into a stroker platform, enabling larger total cubic inches without the need for a full block replacement.

Manufactured from 4340 alloy steel and forged for superior strength, this crankshaft is designed to withstand high-RPM operation, making it suitable for various performance applications. The 4.000-inch stroke increases piston travel and combustion chamber dwell time, enhancing low-end torque and mid-range responsiveness compared to factory specifications. Precision counterweight design minimizes vibration, contributing to engine reliability under demanding conditions.

This stroker crank is ideal for builders planning 427+ cubic inch big-block combinations and fits standard BBC block architecture with compatible pistons, rods, and timing components. While it is engineered for both naturally aspirated and forced-induction applications, builders should ensure compatibility with their specific setups to maximize performance.