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These crankshafts feature profiled aero-wing counterweights and have straight shot and chamfered oil holes
Made from heavy-gauge metal with a silkscreen finish for long-lasting use
while Cleveland/Modified applications use precision laser-cut steel for a factory-style fit and finish
These scoops give you that classic Hilborn-style look with a polished aluminum body
Their performance
Chevy BBC 454 6.385" 4.280" Bore 1.270" .990" Dome Top Forged Pistons These crankshafts feature profiled aero-wingSpeedmaster 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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