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Ships within 48 hours · Estimated delivery Sep 21 - Sep 26
Speedmaster yokes allow the use of larger-than-stock U-joints for that higher horsepower application
Speedmaster main caps are precision machined from superior-quality steel
providing competition engine builders with the most accurate valvetrain components available today
Individually milled from super durable 6061 T6 aluminum billets
so you are good to go
Ford SB 289 302 Windsor 5.4" 4.040" 1.090" 0.927" Flat Top Forged Pistons Speedmaster yokes allow the useSpeedmaster 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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