Chevy BBC 454 6.385" 4.280" Bore 1.270" .990" Dome Top Forged Pistons Made from heavy-gauge metal with

Made from heavy-gauge metal with a silkscreen finish for long-lasting use

these cams provide better throttle response and more top-end horsepower than equivalent cams from other manufacturers

Their performance

Made from 5051 aircraft aluminum alloy

Chevy BBC 454 6.385" 4.280" Bore 1.270" .990" Dome Top Forged Pistons Made from heavy-gauge metal withSpeedmaster 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.