we're providing the core strength your engine build demands. The Pro Series 4340 Alloy Steel Crankshaft is an efficient and precisely balanced foundation for performance, built not just to survive, but to handle extremes across a wide range of applications.
Manley Chevrolet LS Lightweight 4340 Forged 3.2622in Stroke Pro Series Crankshaft w/58T Reluctor
4340 Construction: Forged or Turbo Tuff billet for superior strength
Manley Chevrolet LS Forged Crankshaft - 3.622 in. Stroke
Gun-drilled mains and lightened journals cut weight
Manley Performance isn't just selling components
Manley Crankshaft, CRANK-4340 3.622 STROKE.
Manley Crankshaft, CRANK-4340 3.622 STROKE
Heat-treated and nitrided for durability
Micro-polished journals reduce friction
Manley Crankshaft, 4340 3.622 STROKE
100% magnaflux-inspected
CRANK-4340 3.622 STROKE
Engine Crankshaft
Crankshaft