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MSD Chevy V8 Pro-Billet Distributor 85551
MSD Chevy V8 Pro-Billet Distributor

MSD Chevy V8 Pro-Billet Distributor

MSD85551 (48 in stock)

MSD Ignition

Regular price $369.95 Sale

This is MSD's most popular performance distributor! Must be used with an MSD 6, 7 or 8-series ignition.

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 with an HEI style distributor cap and rotor (accepts Cap-A-Dapts)
  • O-ring seals can be added to modified blocks to improve oil pressure control
  • Special oil tract improves lubrication to the distributor and cam gear
  • Nylon pads ensure smooth operation of the advance weights
  • Advance weight pins are staked and tig welded to the plate
  • Mechanical advance assembly can be locked out for crank trigger systems
  • Advance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reduction
  • Polished steel shaft is QPQ coated and guided by a sealed ball bearing and extra long sintered bushing
  • 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

Specifications

Brand
MSD Ignition
Part Number
85551
Product Line
Pro-Billet
Computer Controlled Compatible
No
Trigger Style
Magnetic
Advance Type
Mechanical
Cap Style
Male
Cap Color
Red
Mechanical Tach Drive
No
Slip Collar
No
Gear Included
Yes
Gear Material
Iron
Ignition Box Required
Yes
Distributor Rotation
Standard
Housing Material
Billet Aluminum
Housing Color
Natural
Housing Finish
Natural
Marine Use
No
Coil Included
No
Quantity
Each