Chevy BBC 454 6.385" 4.530" Bore 1.270" .990" Dome Top Forged Pistons The oil pan helps to

The oil pan helps to cool the oil thru its contact with the outside air

not from sand molds

Speedmaster bearings are precision-engineered to provide you with superior quality

Speedmaster offers all the accessories you will need to find the proper configuration for your supercharger combination

Chevy BBC 454 6.385" 4.530" Bore 1.270" .990" Dome Top Forged Pistons The oil pan helps toSpeedmaster Forged pistons are made from 4032 aluminum alloy for quieter operation and reduced piston to wall clearance. Up to 20% lighter than traditional forged pistons that eliminate harmful stress concentrations for superior strength. Specifically designed for naturally aspirated or moderate nitrous applications.