RaceTec AutoTec Dome Forged Piston - 4.5 in Bore - Big Block Chevy (Set of 8) 3981 1969 Chevrolet C20 Pickup Base bullet proof Strange Oval

RaceTec AutoTec Dome Forged Piston 4.5 in Bore Big Block Chevy (Set of 8) 3981 1969 Chevrolet C20 Pickup Base bullet proof Strange Oval 1969 Chevrolet C20 Pickup Base CID 350 Naturally Aspirated GAS 5 amp single spark through high rpmEasy to adjust mechanical advance with supplied springs and stop bushingsVacuum advance canister for improved economy (can be locked out)CNC machined billet aluminum housing and billet aluminum base for long life and great looksMaintenance free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm rangePolished steel shaft is QPQ coated and guided by a sealed ball bearing providing smooth operationAdvance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reductionMechanical advance assembly can be locked out for crank trigger systemsAdvance weight pins are staked and tig welded to the plate for superior strength We are the only piston company that is using a state of the art D True Piston Experts