Chevy BBC 454 6.385" 4.330" Bore 1.270" .990" Dome Top Forged Pistons Speedmaster H Beam Street /

Speedmaster H Beam Street / Strip connecting rods are manufactured from aircraft quality 4340 Chromoly steel

So can features such as full ball-bearing construction

They are available in a wide variety of styles for many applications

This Speedmaster manual transmission is built with all brand new components and case

protective

Chevy BBC 454 6.385" 4.330" Bore 1.270" .990" Dome Top Forged Pistons Speedmaster H Beam Street /Speedmaster 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.