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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12
They are machined from chromoly steel
just like OEM
the lever will work with all the common competition shifters
along with a mechanical lifter cam
Their performance
Chevy BBC 454 6.385" 4.350" Bore 1.270" .990" Dome Top Forged Pistons They are machined from chromolySpeedmaster 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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