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When roller rocker arms are installed
acceleration is more responsive
Speedmaster has already done the work for you
short block engines are the solution to a hassle-free power build
Chevy 400 427 Ford 351W Windsor 4.165" 1.015" Dished -16cc Forged Pistons When roller rocker arms areSpeedmaster 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.
US$ 11.49
US$ 31.77
US$ 11.46
US$ 137.62
