Chevy LS2 4.005" Bore 1.115" .927" Flat Top Forged Pistons The belts use a fiberglass

The belts use a fiberglass cord wound across the entire width of the belts to minimize stretching

Speedmaster breathers keep your crankcase properly vented and add a little shine under the hood

Bolts directly to torqueflite converters

Using only three parts--a laser-welded sealed housing

O-ring seal is included

Chevy LS2 4.005" Bore 1.115" .927" Flat Top Forged Pistons The belts use a fiberglassSpeedmaster 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.