Chevy LS1 3.905" Bore 1.115" .927" Flat Top Forged Pistons All rockers feature large needle

All rockers feature large needle bearings or bushes and roller tips

Speedmaster power steering pump brackets for long water pump

they don't require any special tools for installation

Pontiac Firebird

and include the sealing ring

Chevy LS1 3.905" Bore 1.115" .927" Flat Top Forged Pistons All rockers feature large needleSpeedmaster 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.