MSD/Distributor

Vehicle Specific
Part Number: 85551
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Price: $249.99
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Features & Benefits

This is our most popular performance distributor! 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 In. 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.

  • CNC machined billet aluminum housing and Dupont Rynite base
  • Easy-to-adjust mechanical advance with supplied springs and stop bushings
  • Maintenance-free magnetic pickup and precision reluctor create stable trigger signals throughout the RPM range
  • Polished steel shaft is QPQ coated and guided by two sealed ball bearings
  • Advance plate and weights are fine blanked from chromoly steel and QPQ coated for friction reduction
  • Will not accept a vacuum advance canister
Product Details
Part Number: 85551
Weight: 3.956 lbs
Notes: Pro-Billet (TM). Includes cap/race rotor. Use with MSD 6/7/8/10 series ignition. Not legal for sale or use on pollution controlled vehicles.
Adjustable Height: No
CARB Approved: No
Coil Wire Included: No
Color / Finish: Red
Computer Controlled Distributor: No
Crank Trigger Required: No
Cylinders: 8
Distributor / Coil Terminal Gender: Male
Distributor Advance Type: Mechanical
Distributor Cap Attachment Method: Clamp On
Distributor Cap Color / Finish: Red
Distributor Cap Included: Yes
Distributor Cap Material: Rynite
Distributor Gear Material: Iron
Distributor Helix Rotation: Right Hand
Distributor Shaft Diameter (in): 0.501
Distributor Tachometer Drive: No
Distributor Trigger Type: Magnetic
Housing Material: Billet Aluminum
Ignition Module Included: No
Ignition Module Required: Yes
Ignition Rotor Included: Yes
Ignition Rotor Rotation: Clockwise
Ignition Wire Retainer: Yes
Integrated Ignition Coil: No
Item Grade: High Performance
Low Profile: No
Rotor Body Material: Rynite/brass tip
Slip Collar: No
Timing: Mechanically Adjustable Advance
Wiring Harness Connector Configuration: 2 Wire Amp
Shipping Information: Overnight and Two Day shipping are not available for PO Box, APO/FPO/DPO or US Territory addresses.
This product may be shipped directly by the vendor to any eligible US addresses, excluding APO/FPO/DPO or US Territory addresses.
  • Overall

    MSD/Distributor


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