Chevy LS2 4.000" Bore 1.065" .927" Flat Top Forged Pistons Speedmaster pulley systems work with

Speedmaster pulley systems work with any type of cylinder head or manifold configuration

These crankshafts feature profiled aero-wing counterweights and have straight shot and chamfered oil holes

measuring 92mm

accurate movements when shifting

Available in plain or finned styles

Chevy LS2 4.000" Bore 1.065" .927" Flat Top Forged Pistons Speedmaster pulley systems work withSpeedmaster 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.