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The Manley Pro Series 4340 forged crankshaft for Chevrolet LT1 DI combines strength and precision for demanding engine builds. This 4340 alloy steel crank uses non-twist forging, gun-drilled mains and lightened journals to reduce weight, and is heat-treated and nitrided for longevity. Micro-polished journals and 100% magnaflux inspection ensure durability and smooth operation for high-performance applications.
Manley Chevrolet LT1 Directed Injected 4340 Forged 3.622in Stroke Pro Series Crankshaft
