Chevy BBC 454 6.385" 4.350" Bore 1.270" .990" Dome Top Forged Pistons These rockers are precision-machined to

These rockers are precision-machined to ensure consistency and ratio accuracy and have a great looking anodized finish

reliable cam timing

the lever will work with all the common competition shifters

They are machined from chromoly steel

Speedmaster rear-end assemblies are the ultimate solution

Chevy BBC 454 6.385" 4.350" Bore 1.270" .990" Dome Top Forged Pistons These rockers are precision-machined 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.