Product Summary

HEI / Male Cap Type, Mechanical Advance Type

  • Nylon pads ensure smooth operation of the advance weights
  • CNC machined billet aluminum housing and billet aluminum base
  • Must be used with an MSD Ignition Control
  • Special oil tract improves lubrication to the distributor and cam gear
  • Supplied with an HEI style distributor cap and rotor (accepts Cap-A-Dapts)
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Key Specs

MFG. Part #8589
BrandMSD
Cap TypeHEI / Male
Advance TypeMechanical
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MSD 8589 Details

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.
Features:
Nylon pads ensure smooth operation of the advance weights
CNC machined billet aluminum housing and billet aluminum base
Must be used with an MSD Ignition Control
Special oil tract improves lubrication to the distributor and cam gear
Supplied with an HEI style distributor cap and rotor (accepts Cap-A-Dapts)
Will not accept a vacuum advance canister
Advance weight pins are staked and tig welded to the plate
Advance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reduction
Maintenance-free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm range
O-ring seals can be added to modified blocks to improve oil pressure control
Easy-to-adjust mechanical advance with supplied springs and stop bushings
Mechanical advance assembly can be locked out for crank trigger systems
Polished steel shaft is QPQ coated and guided by a sealed ball bearing and extra long sintered bushing

Specs

  • Brand: MSD
  • Category: Ignition
  • Color: Red
  • Distributor Cap Included: Yes
  • Distributor Type: Magnetic Pickup
  • Emission Code: 3
  • Gear Material: Cast Iron Melonized QPQ Coated
  • Grade Type: Performance
  • Ignition Box Required: Yes
  • Ignition Coil Included: No
  • Ignition Rotor Included: Yes
  • Part Type: Distributor
  • Product Type: Distributor
  • Sub Category: Distributor and Magneto
  • Warning: California Proposition 65
  • Warranty: Manufacturer's Limited 1 Year Warranty

MSD 8589 Specifications

KEY SPECS
MFG. Part #8589
BrandMSD
Cap TypeHEI / Male
Advance TypeMechanical
GENERAL
Trigger StyleMagnetic
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