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These Speedmaster 8-71 and 6-71 supercharger manifolds are aluminum constructed and suitable for competition or street use
The Speedmaster top plates allow air to enter smoothly through the top
Speedmaster chrome breathers keep your crankcase properly vented and add a little shine under the hood
laying a strong platform to build on
Designed to look standard under your bonnet
Ford 351W Windsor 408 434 ci 4.060" 1.250" 0.927" Flat Top Forged Pistons These Speedmaster 8-71 and 6-71Speedmaster 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.
