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Made from CNC machined billet steel for heady duty applications
Precision CNC-machined threads to ensure optimum seat pressure
They are available in plain and ball milled designs to best suit your tastes and match your ride
and they may be reduced to fit if you decide to narrow your rear-end later on
Chevy SBC 383 ci 6.0" 4.040" 1.125" 0.927" Flat Top Forged Pistons Made from CNC machined billetSpeedmaster 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.
