If you have a slightly taller block or have decked the heads, the distance between the distributor mounting pad and the cam gear-oil pump drive may be different. MSD offers these distributor with an adjustable slip collar with 1.5 In. of adjustment so you can be sure the distributor is installed correctly. The distributor shares the same?features of the standard Pro-Billet Chevrolet model including a ball bearing guide, long sintered lower bushing and an oil seal. To trigger the MSD Ignition a maintenance-free magnetic pick-up is secured in the billet base of the distributor. Just above this pick-up assembly is an adjustable mechanical advance assembly. Product Features:CNC machined billet aluminum housing and billet aluminum baseWill not accept a vacuum advance canisterMust Be Used w/An MSD Ignition ControlSupplied w/HEI style distributor cap/rotor (accepts Cap-A-Dapts)O-ring seals can be installed for oil press. control (Mods only)Special oil tract improves lubrication to the dist./cam gearNylon pads ensure smooth operation of the advance weightsAdvance weight pins are staked and tig welded to the plateMech. advance assem. can be locked out for crank trigger systemsAdvance plate and weights are fine blanked from chrome moly steelQPQ coated for friction reductionQPQ coated polished steel shaft; guided by sealed ball bearings
