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MSD 8578 Ford 351W Small Diameter Pro-Billet Distributor

(Ford F-150 1981-96, Mustang 1970-73, 1995, F-350 Super Duty 1995-97, F-250 1981-97, Bronco 1978-96, Thunderbird 1977-79, F-350 1981-97 + 29 more models)

Part of: MSD Pro-Billet Distributor

Other options in this family: MSD 85505 MSD 85345 MSD 85941 MSD 85773 MSD 85703

Manufacturer

Picture for manufacturer MSD

Part Number

8578
6 reviews
Sale Price

$571.95

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The MSD 8578 is a high-performance Pro-Billet distributor engineered specifically for Ford 351W engines. Built around a compact CNC machined billet aluminum housing and base, this distributor is 5/8" smaller in diameter than stock Ford distributors, freeing up valuable clearance in tight engine bays without sacrificing performance. Note: This distributor must be used in conjunction with an MSD Ignition Control (MSD 6, 7, or 8-series ignition).

Key Features:

  • CNC machined billet aluminum housing and billet aluminum base for precision fit and long-term durability
  • Billet housing is 5/8" smaller in diameter than stock Ford distributors, providing extra clearance in front of the engine
  • Polished steel shaft is QPQ coated and guided by a sealed ball bearing for high-RPM stability and endurance
  • Maintenance-free magnetic pickup and precision reluctor deliver accurate, stable trigger signals throughout the entire RPM range
  • Advance plate and weights are fine-blanked from chrome moly steel and QPQ coated for reduced friction
  • Advance weight pins are staked and TIG welded to the plate for maximum strength and reliability
  • Nylon pads ensure smooth operation of the advance weights
  • Easy-to-adjust mechanical advance with supplied springs and stop bushings for precise timing control
  • Mechanical advance assembly can be locked out for use with crank trigger systems
  • Supplied with a small diameter cap featuring HEI-style terminals and a race rotor
  • Compatible with the MSD 8441 Cap-A-Dapt
  • Includes iron distributor gear
  • No CARB Exemption Order Number — not legal for sale or use in California on pollution-controlled vehicles

The MSD 8578 Pro-Billet distributor delivers race-proven ignition performance in a compact, precision-machined package. Whether building a street performer or a dedicated race engine, the adjustable mechanical advance, durable QPQ-coated internals, and small-diameter housing make this distributor an ideal upgrade over stock Ford 351W ignition components.

Products specifications

Fits

Ford F-150 1981-96, Mustang 1970-73, 1995, F-350 Super Duty 1995-97, F-250 1981-97, Bronco 1978-96, Thunderbird 1977-79, F-350 1981-97, Galaxie 500 1969-70, F-100 1981, F-250 Pickup 1981-97, Fairlane 1969-70, Ranchero 1969-79 + 24 more models

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