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a C5 Corvette hub bearing pack
wall thickness and are formed from 4130 chromoly steel
heat-treated to a maximum strength of 190
people tend to forget that the yoke is the one piece that ties it all together
They are engineered to be "where the oil is" under the most demanding racing conditions
Chevy BBC 454 6.385" 4.350" Bore 1.270" .990" Dome Top Forged Pistons a C5 Corvette hub bearingSpeedmaster 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.
