Chevy BBC 454 6.385" 4.530" Bore 1.270" .990" Dome Top Forged Pistons and increasing the cap's resistance

and increasing the cap's resistance to closing up under high loads

Speedmaster Aluminum Roller Rockers are extruded from 6061 T6 Aluminum

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

These rods incorporate a special dowelled cap for specific cap-to-rod alignment and are profiled with extra clearance for stroker applications

Chevy BBC 454 6.385" 4.530" Bore 1.270" .990" Dome Top Forged Pistons and increasing the cap's resistanceSpeedmaster 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.