Pay in 4 interest-free payments of $66.29 Learn more
Ships within 48 hours · Estimated delivery Sep 16 - Sep 21
6" axle or GM 10-Bolt
This construction ensures superior strength
The Speedmaster MidRise Air design features the identical plenum and runner design as the normal MidRise
Speedmaster flexplates make excellent upgrades to your stock design
chrome plated for a shiny finish
Chevy BBC 454 6.385" 4.250" Bore 1.270" .990" Dome Top Forged Pistons 6" axle or GM 10-BoltSpeedmaster Forged pistons are made from 4032 aluminum alloy for quieter operation and reduced piston to wall clearance. Up to 20% lighter than traditional forged pistons that eliminate harmful stress concentrations for superior strength. Specifically designed for naturally aspirated or moderate nitrous applications.
US$ 109.95
US$ 59.95
US$ 28.95
