Overview The housing is machined from a billet of 6061-T6 aluminum on a state-of-the-art CNC machine producing exact tolerances. For high rpm stability, a .500" steel shaft is supported by a sealed ball bearing and a long sintered bushing. This shaft also receives a QPQ coating for friction reduction and resistance to corrosion. A precision machined reluctor is attached to the shaft which triggers the magnetic pick-up mounted in the housing. This high output magnetic pick-up is the most accurate way to trigger your ignition. Plus, with no moving parts to wear or adjust, the pick-up is maintenancefree! Just above the pick-up is MSD's adjustable mechanical advance assembly. | Must be used with an MSD 6, 7 or 8-series ignition. | Customers can save up to $140 off with the new MSD Pro-Billet Ignition Bundles for small-block Chevrolet, big-block Chevrolet, and Ford small-block engines! These packages include Pro-Billet distributor, the new Ultra 6AL ignition box, plus a Blaster 2 coil. Kits also include timing tape for trouble-free installation. A complete ignition upgrade is one click away with MSD Pro-Billet Ignition Bundles! | Different springs and stop bushings are supplied so you can tune an advance curve to match your application. Features Special oil tract improves lubrication to the distributor and cam gear Maintenance-free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm range Easy-to-adjust mechanical advance with supplied springs and stop bushings No CARB Exemption Order Number CNC machined billet aluminum housing and billet aluminum base Polished steel shaft is QPQ coated and guided by a sealed ball bearing and extra long sintered bushing Advance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reduction Mechanical advance assembly can be locked out for crank trigger systems 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 Nylon pads ensure smooth operation of the advance weights Supplied with an HEI style distributor cap and rotor (accepts Cap-A-Dapts) Advance weight pins are staked and tig welded to the plate
