Chevy BBC 454 6.385" 4.250" Bore 1.270" .990" Dome Top Forged Pistons Bronze gears absorb the increased

Bronze gears absorb the increased wear in special cams and magnetos and are easily replaced before costly damage to the camshaft gear occurs

Designed to complement any space

This construction ensures superior strength

Manufactured with lightweight aluminum technology

The key to a cooler and longer-lasting transmission is simple Speedmaster dual pass transmission coolers

Chevy BBC 454 6.385" 4.250" Bore 1.270" .990" Dome Top Forged Pistons Bronze gears absorb the increasedSpeedmaster 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.