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Speedmaster Keychains are the perfect way to let everyone know where you go for high performance aftermarket parts and accessories
They are designed to fit a variety of applications
Made from high quality steel and will install without any modifications
They're made from a tough
Precision CNC-machined threads to ensure optimum seat pressure
Chevy SBC 383 ci 6.0" 4.040" 1.125" 0.927" Flat Top Forged Pistons Speedmaster Keychains are the perfectSpeedmaster 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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