Product Line: 5140 Forged Steel. Crankshaft Material: Forged 5140 Steel. Part Type: Crankshaft. Crankshaft Snout Style: Standard. 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.
This product would be ideal for engine builders and enthusiasts seeking a forged steel crankshaft for their Chevrolet applications with specific measurement requirements for the M-350 and RJ-2.1 bolt patterns and balanced reciprocating mass.
