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Speedmaster main caps improve reliability in highly stressed engines by reducing distortion of the main bearing bores
5" 10 Bolt axle
the LS-series heads are produced using our "Gravity Casting" process
Will not directly plug into GM column but can be connected by individually connecting wires from harness to their respective circuits
while giving accurate measurements on your oil capacity
Chevy SBC 383 ci 6.0" 4.030" 1.125" 0.927" Flat Top Forged Pistons Speedmaster main caps improve reliabilitySpeedmaster 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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