Speedmaster PCE276.1022.02 Compatible with Chevy 400 4340 Forged Steel Crankshaft ST-3.750 M-400 RJ-2.1 RMS-2Pc Bal-Int 6"

Speedmaster forged standard weight crankshafts are designed for street or race engines with substantially increased horsepower. Speedmaster crankshafts are precision-ground, heat-treated, shot-peened, inspected, and micro-polished for superior tolerance control. Speedmaster crankshafts are also nitride-hardened for superior wear resistance, have straight-shot and chamfered oil holes, and feature lightening holes in all rod throws. These crankshafts also have a large radius on all journals for improved strength and wear resistance.