MSD 85551 Pro-Billet Distributor
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MSD CO. MSD-85551 Will not accept a vacuum advance canister, O-ring seals can be added to modified blocks to improve oil pressure control, Must be used with an MSD Ignition Control, Mechanical advance assembly can be locked out for crank trigger systems, Advance weight pins are staked and tig welded to the plate, Polished steel shaft is QPQ coated and guided by a sealed ball bearing and extra long sintered bushing, Special oil tract improves lubrication to the distributor and cam gear, Nylon pads ensure smooth operation of the advance weights, No CARB Exemption Order Number, Advance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reduction