Chevy SBC 383 ci 6.0" 4.060" 1.125" 0.927" Flat Top Forged Pistons and have a black oxide

and have a black oxide corrosion-resistant finish

they offer excellent heat resistance and long-lasting performance

They weigh only 2

Store and protect your differentials the easy way with our Speedmaster horizontal differential storage cases

Chevy SBC 383 ci 6.0" 4.060" 1.125" 0.927" Flat Top Forged Pistons and have a black oxideSpeedmaster 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.