Chevy BBC 454 6.385" 4.280" Bore 1.270" .990" Dome Top Forged Pistons The Speedmaster shift selector shaft

The Speedmaster shift selector shaft uses an O-ring to prevent leakage from GM TH400 cases

keeping your pulleys looking great for many years to come

The "S" shape gap between inner and outer ring is press inserted with sulfated elastic rubber to ensure the damper will not disintegrate under any circumstance

They include an alkyd distributor cap with brass terminal connections

100635 Spline Oversize Pinion Bearings:PCE207

Chevy BBC 454 6.385" 4.280" Bore 1.270" .990" Dome Top Forged Pistons The Speedmaster shift selector shaftSpeedmaster 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.