Chevy BBC 454 6.385" 4.530" Bore 1.270" .990" Dome Top Forged Pistons They are for small and

They are for small and big block Chevys

not from sand molds

and quality components are combined into a precision-machined compact package

Step up to the high-rpm power of an open plenum with Speedmaster HiRise intake manifolds

Complete kit with Multi-Layer Steel (MLS) Head Gaskets

Chevy BBC 454 6.385" 4.530" Bore 1.270" .990" Dome Top Forged Pistons They are for small andSpeedmaster 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.