Chevrolet Performance 12489436 - Crankshaft, 383-Cubic-Inch 4340 Forged Steel

Forged 4340 steel crankshaft used to create 383-cubic-inch engines with 3.800" stroke. Rod journals are 2.100". Mains are standard 350 size. NOTE: Should be used with connecting rods P/N 19169670, bearing kit P/N 17800761, standard pistons P/N 88962748 or .030" oversize pistons P/N 88962749, balancer P/N 12498008, and 1986-and-later 1-piece crank seal design flywheel or flexplate