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Manley Pro Series crankshafts provide a strong, precisely balanced foundation for performance builds. Constructed from 4340 alloy steel non-twist forgings, these crankshafts feature gun-drilled mains and lightened journals to cut weight, are heat-treated and nitrided for durability, micro-polished journals to reduce friction, and are 100% magnaflux-inspected. The Pro Series is intended to handle demanding applications while offering reliability for tuners and engine builders.
Manley Chevrolet LT1 4.000in Stroke Lightweight Long Snout Pro Series Crankshaft
