Chevy SBC 383 ci 6.0" 4.040" 1.125" 0.927" Flat Top Forged Pistons They feature bodies and /

They feature bodies and / or secondary towers and feature brass secondary contacts (except direct fire coil on plug applications)

Enhance your engines performance with this lightweight

wall thickness and are formed from 4130 chromoly steel

*Will not work on engines w/reverse flow heads as utilized on 1992-96 LT-1 Corvette

They are heat-treated prior to thread rolling and machining and are rated at a whopping 190

Chevy SBC 383 ci 6.0" 4.040" 1.125" 0.927" Flat Top Forged Pistons They feature bodies and /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.