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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
Speedmaster roller rockers are available in various ratios
The LS (Gen3/4) platform has many design benefits over the earlier SBC engine designs
improve starting
and have a maximum pressure of 7 psi with an externally accessible pressure relief valve
No modifications to the dipstick are needed
Chevy SBC 383 ci 6.0" 4.030" 1.125" 0.927" Flat Top Forged Pistons Speedmaster roller rockers are availableSpeedmaster 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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