Ford SB 289 302 Windsor 5.4" 4.060" 1.090" 0.927" Flat Top Forged Pistons Do you want to finish

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while the extruded body has a tensile strength over 60

Ford SB 289 302 Windsor 5.4" 4.060" 1.090" 0.927" Flat Top Forged Pistons Do you want to finishSpeedmaster 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.