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 maintenance free! 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.
  • CNC machined billet aluminum housing and billet aluminum base
  • Will not accept a vacuum advance canister
  • Must be used with an MSD Ignition Control
  • Supplied 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 gear
  • Nylon pads ensure smooth operation of the advance weights
  • Advance weight pins are staked and tig welded to the plate
  • Mech. advance assem. can be locked out for crank trigger systems
  • Advance plate and weights are fine blanked from chrome moly steel
  • QPQ coated for friction reduction
  • QPQ coated polished steel shaft
  • guided by sealed ball bearings
Attributes
ASIN B01JP2KHOC
Country of Origin (Primary) US
Distributor Type HEI/Breakerless
Emission Code Legal US
Engine Make/Size Chevy V8
Harmonized Tariff Code (Schedule B) 8511300040
Hazardous Material Code N
Life Cycle Status Code 2
MSDS Required Flag N
NAFTA Preference Criterion Code B

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MSD 85555 Black Pro-Billet Distributor

Product Information

  • Brand: MSD
  • Product Number: 85555
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