Description
SCE Pro Copper Cylinder Head Gasket 4.520 in Bore 0.043 in Compression Thickness Copper Big Block Chevy P135243 Perma Cool This is the brushed spokes Size:8 HAWHB237U625 WM302 1.200 Micro Babbitt a very This is the brushed spokes version roll pin and setup spacerNylon pads ensure smooth operation of the advance weightsAdvance weight pins are staked and tig welded to the plateMechanical advance assembly can be locked out for crank trigger systemsAdvance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reductionPolished steel shaft is QPQ coated and guided by a sealed ball bearingCNC machined billet aluminum housing and billet aluminum baseMaintenance free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm rangeVacuum advance canister for improved economy (can be locked out)Easy to adjust mechanical advance with supplied springs and stop bushingsPowerful built in module produces a 7