Manley Big Block Chevy 4.250″Stroke 4340 Non-Twist Forged Crankshaft, 454 Main Journal (2.750″), 2.200″ Rod Journal, W/ Center Counter Weights, Bobweight 2350 grams, 74-76lbs 190290
Requires Minimum rod length 6.385″
Heat Treated, Stress Relieved, Shot peened, nitrided and 100% magnafluxed
Micro polished large radius journals (narrowed rod bearings required)
Note: Manley crankshafts are not intended for use with highly boosted roots style cog belt superchargers.