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Ships within 48 hours · Estimated delivery Sep 11 - Sep 16
high-tech styling
Speedmaster pinion depth shims allow you to seat your pinion gear perfectly
Specialized high temperature epoxy resists shock and vibration
easily outperforming stock ignitions
heat-treated to the highest Rockwell hardness available
Ford 351W Windsor 408 434 ci 4.020" 1.250" 0.927" Flat Top Forged Pistons high-tech stylingSpeedmaster 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.
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