Chevy 400 427 Ford 351W Windsor 4.165" 1.015" Dished -16cc Forged Pistons They are heat-treated prior to

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

Get genuine Speedmaster stainless steel valves

but have profiled counterweights for less weight

The Speedmaster throttle body begins as a billet of 6061- T6 aluminum for superior quality and is introduced to a state-of-the-art CNC machine

Speedmaster billet aluminum spacers provide the benefits of an open carburetor spacer

Chevy 400 427 Ford 351W Windsor 4.165" 1.015" Dished -16cc Forged Pistons They are heat-treated prior toSpeedmaster 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.