Chevy 400 427 Ford 351W Windsor 4.165" 1.015" Dished -16cc Forged Pistons Speedmaster flexplates will withstand the

Speedmaster flexplates will withstand the extreme power and rpm of today's engines

or larger wheels to clear them

Made from 4340 round bar to exact tolerances

intake valve with minimal additional work

Chevy 400 427 Ford 351W Windsor 4.165" 1.015" Dished -16cc Forged Pistons Speedmaster flexplates will withstand theSpeedmaster 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.