This is our most popular performance distributor! Must be used with an MSD 6, 7 or 8-series ignition. Contains a Pro-Billet Distributor, Ultra 6AL ignition Box, and a Blaster 2 Ignition Coil.

Part Number: 85551K

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 and Benefits

• 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

Distributor