LT Gen-5 Crankshaft 3.622 Stroke

The LT Gen-5 Crankshaft 3.622 Stroke from Chevrolet Performance is an essential component for serious engine builders aiming for maximum displacement and torque in modern LS-based powerplants. This OEM-spec crankshaft is designed for both enthusiasts and professional builders who require reliability in high-rpm applications, whether for street performance, forced induction builds, or naturally aspirated competition engines.

The 3.622-inch stroke dimension is critical as it directly influences your engine's cubic-inch displacement and bottom-end characteristics. This forged crankshaft is manufactured to Chevrolet Performance's exacting standards, ensuring consistent journal sizing, proper balancing, and superior fatigue resistance under sustained high-load conditions. The lightweight design complements modern piston and rod combinations, optimizing performance.

Builders upgrading from stock Gen-5 LT platform engines or assembling custom applications will benefit from the crankshaft's optimized mass of 65 lbs, which enhances overall engine performance. Proper dynamic balancing and precision grinding of all journals ensure smooth operation at elevated rpm levels, reducing vibration that can compromise bearing life and overall engine longevity.