Brian Crower BC5457U - Chevrolet LS Series Crankshaft - 4340 Forging - 4.100" Stroke, Self Balanced w/58 Tooth Wheel

4340 forging, unbalanced. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (multi step heat treatment) for ultimate performance. Fully profiled counterweights are designed for reduced windage through the crankcase creating less oil resistance for better rpm potential.