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This body has a much larger diameter then your existing throttle body
Speedmaster automatic transmission rebuild components ensure smooth gear changes and overall transmission performance
wall thickness and are formed from 4130 chromoly steel
The Speedmaster shift selector shaft is built with sturdy
Chevy SBC 383 ci 6.0" 4.040" 1.125" 0.927" Flat Top Forged Pistons This body has a muchSpeedmaster 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.
