Chevy 400 4340 Forged Steel Crankshaft ST-3.750 M-400 RJ-2.1 RMS-2Pc Bal-Int LW The 6-pinion front planetary carrier

The 6-pinion front planetary carrier is made from K1045 billet steel

Speedmasterª EFI systems give you everything you need to add powerful and efficient fuel injection to your vehicle

headers an exact seal with their composite material construction

These Speedmaster engine stands are designed to be used to position engines that need to be repaired or rebuilt

Speedmaster has the quality and dependability you'd expect from an engine stand

Chevy 400 4340 Forged Steel Crankshaft ST-3.750 M-400 RJ-2.1 RMS-2Pc Bal-Int LW The 6-pinion front planetary carrierThese Speedmaster crankshafts are made from the same strong aircraft quality forging as standard weight cranks, but have profiled counterweights for less weight. Speedmaster lightweight crankshafts are perfect for engines wanting quicker rpm. These crankshafts feature profiled aero wing counterweights and have straight shot and chamfered oil holes. Speedmaster crankshafts are nitride hardened, with large radii on all journals for superior wear