Chevy BBC 454 6.385" 4.290" Bore 1.270" .990" Dome Top Forged Pistons heat-treated to a maximum strength

heat-treated to a maximum strength of 190

the least runout

Our billet steel true roller timing sets have rugged double-row

and include a mounting bracket

Speedmaster replacement parts that you need to keep your looking and operating at the highest standard

Chevy BBC 454 6.385" 4.290" Bore 1.270" .990" Dome Top Forged Pistons heat-treated to a maximum strengthSpeedmaster 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.