MSD Ignition Pro-Billet Distributor (MPN: 8578)

Compact design for Ford 351W engines with advanced features.

The MSD Ignition Pro-Billet Distributor is engineered specifically for Ford 351W cubic inch engines, providing a compact solution that enhances engine performance. With a diameter 5/8 inch smaller than stock distributors, this design allows for increased space in front of the engine, facilitating easier installation. The distributor features a red cap with HEI/male posts and utilizes a magnetic trigger system for reliable spark delivery across a wide RPM range.

This distributor is equipped with a maintenance-free magnetic pickup and precision reluctor, ensuring stable trigger signals even at high RPMs. The polished steel shaft is QPQ coated and operates within a sealed ball bearing, promoting durability and stability. Additionally, the fully adjustable mechanical advance assembly allows for precise timing adjustments, with supplied springs and stop bushings to customize the advance rate according to specific performance needs.

Constructed from CNC machined billet aluminum, both the housing and base provide robust support for the internal components. The mechanical advance assembly can also be locked out for use with crank trigger systems, making it versatile for various applications. The design includes staked and TIG welded advance weight pins, along with nylon pads to ensure smooth operation of the advance weights, contributing to the overall reliability of the ignition system.

Features

• Easy To Adjust Mechanical Advance With Supplied Springs And Stop Bushings
• CNC Machined Billet Aluminum Housing And Billet Aluminum Base
• Maintenance Free Magnetic Pickup And Precision Reluctor Create Stable Trigger Signals Throughout The RPM Range
• Polished Steel Shaft Is QPQ Coated And Guided By A Sealed Ball Bearing, Advance Plate And Weights Are Fine Blanked From Chrome Moly Steel And QPQ Coated For Friction Reduction
• Mechanical Advance Assembly Can Be Locked Out For Crank Trigger Systems
• Advance Weight Pins Are Staked And TIG Welded To The Plate, Nylon Pads Ensure Smooth Operation Of The Advance Weights

Specifications

• Manufacturer: MSD Ignition
• Manufacturer Part Number: 8578
• Condition: New
• Finish: Polished Shaft
• Recommended Use: Street/ Strip
• Spark Advance Type: Mechanical Advance
• Spark Distribution Type: Magnetic Trigger
• Drive Gear Type: Iron Gear
• With Ignition Module: No
• With Tach Drive: No
• Includes Cap And Rotor: Yes
• Cap Color: Red
• Cap Type: HEI/ Male Posts
• Coil In Cap: No

Compatibility / Fit

• 1978-1985 Ford Bronco
• 1969-1974 Ford Country Sedan
• 1969-1974 Ford Country Squire
• 1969-1972 Ford Custom
• 1969-1977 Ford Custom 500
• 1975-1983 Ford E-100 Econoline
• 1975-1983 Ford E-100 Econoline Club Wagon
• 1975-1985 Ford E-150 Econoline
• 1975-1985 Ford E-150 Econoline Club Wagon
• 1975-1985 Ford E-250 Econoline
• 1975-1985 Ford E-250 Econoline Club Wagon
• 1975-1985 Ford E-350 Econoline
• 1977-1985 Ford E-350 Econoline Club Wagon
• 1975-1976 Ford Elite
• 1977-1979 Ford F-100
• 1977-1985 Ford F-150
• 1993-1995 Ford F-150
• 1977-1985 Ford F-250
• 1977-1985 Ford F-350
• 1969-1970 Ford Fairlane
• 1969-1970 Ford Falcon
• 1969-1974 Ford Galaxie 500
• 1972-1976 Ford Gran Torino
• 1975-1977 Ford Granada
• 1969-1984 Ford LTD
• 1987-1991 Ford LTD Crown Victoria
• 1977-1979 Ford LTD II
• 1969-1973 Ford Mustang
• 1969-1974 Ford Ranch Wagon
• 1969-1979 Ford Ranchero
• 1900-1900 Ford Small Block 221-351W
• 1977-1979 Ford Thunderbird
• 1969-1976 Ford Torino
• 1977-1977 Lincoln Versailles
• 1969-1974 Mercury Colony Park
• 1969-1969 Mercury Comet
• 1969-1979 Mercury Cougar
• 1969-1971 Mercury Cyclone
• 1978-1979 Mercury Grand Marquis
• 1971-1973 Mercury Marquis
• 1978-1979 Mercury Marquis
• 1975-1977 Mercury Monarch
• 1969-1976 Mercury Montego
• 1970-1974 Mercury Monterey

Technical Documents

• 8578.pdf
• msd_brand_warranties.pdf