The Manley Pro Series forged 4340 alloy steel crankshaft for Chevrolet LT1 direct-injection applications supplies a precisely balanced, high-strength rotating foundation with a 4.00in stroke. Gun-drilled mains, lightened journals and micro-polished journals reduce reciprocating mass and friction. Heat-treated and nitrided for durability, each crankshaft is 100% magnaflux-inspected to meet demanding engine build requirements.
Manley Chevrolet LT1 Directed Injected 4340 Forged 4.00in Stroke Pro Series Crankshaft