Chevy BBC 454 6.385" 4.280" Bore 1.270" .990" Dome Top Forged Pistons The TorqueWorm is a torque

The TorqueWorm is a torque biasing 6 pinion gear type limited-slip unit

They include an alkyd distributor cap with brass terminal connections

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

100635 Spline Oversize Pinion Bearings:PCE207

keeping your pulleys looking great for many years to come

Chevy BBC 454 6.385" 4.280" Bore 1.270" .990" Dome Top Forged Pistons The TorqueWorm is a torqueSpeedmaster 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.