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modeled off OE castings for factory fit and finish
the least runout
Precision CNC-machined threads to ensure optimum seat pressure
They are designed to fit a variety of applications
Speedmaster cylinder head valvetrain kits offer a comprehensive solution for revitalizing your engine's cylinder heads
Chevy SBC 383 ci 6.0" 4.040" 1.125" 0.927" Flat Top Forged Pistons modeled off OE castings forSpeedmaster 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.
