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The internal components are made from EN36 material as used in racing
a C5 Corvette hub bearing pack
All kits come complete hardened parallel washers for an even load distribution and accurate torque readings
with the performance and durability required to reach the winner's circle
Ford SB 289 302 Windsor 5.4" 4.020" 1.090" 0.927" Flat Top Forged Pistons The internal components are madeSpeedmaster 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.
