The advance weight pins are staked and tig welded to the plate, A special oil tract improves lubrication to the distributor and cam gear, Features a CNC machined billet aluminum housing and billet aluminum base, It is supplied with an HEI style distributor cap and rotor (accepts Cap-A-Dapts), Polished steel shaft is QPQ coated and guided by a sealed ball bearing and extra long sintered bushing MSD 85555 Chevy Black V8 Pro-Billet Distributor Sku # 54785555 Mfr. Part # 85555 Condition New Brand MSD Sold Each Details
This is our most popular performance distributor! Must be used with an MSD 6, 7 or 8-series ignition. Now in Black!
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. Different springs and stop bushings are supplied so you can tune an advance curve to match your application. Must be used with an MSD 6, 7 or 8-series ignition.
Specs External Ignition Box Required Yes Cap Type HEI / Male Cap Terminal Style HEI / Male Advance Type Mechanical Trigger Style Magnetic Hall Effect No Sync Signal No Trigger Sensors Single Gear Material Iron Gear Rotation Standard Distributor Cap Color Black Ignition Box Required Yes Mechanical Tach Drive No Slip Collar No Housing Material Billet Aluminum Housing Finish Natural Emissions California EO Approved Marine Use No MFG. Part # 85555 Sold in Quantity Each GTIN Code 085132855551 Reviews This MSD distributor looks sinister! Rated by Jack on July 26, 2026
Summary: It's a cool murdered out distributor looks mean and it's low profile perfect for a blower combo and or to hook it up to an MSD box.
Yes, I recommend this product.
Yes, I would buy this product again Rated by Tony on October 15, 2025
Summary: I put this pro billet black distributor in my 1937 Ford pick up street rod with a small block Chevrolet. it replaced the MSD pro billet distributor that has been in use for 16 years. it looks great. It works even better.
Yes, I recommend this product.
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