Mustang MSD Pro Billet EFI V8 Distributor (1986-1993) Installation Instructions

Tools Required:
  • Flat Head Screw Driver
  • 1/2-inch Socket & Ratchet
  • Tape
  • Marker
  • Timing Light
Install Difficulty:
  • Easy
  • Easy Project
1. To start the installation of your new Mustang MSD 8456 Pro Billet EFI V8 Distributor, remove your negative battery cable.
2. Install the supplied O-ring onto the new MSD Distributor.
Mustang MSD Pro Billet EFI V8 Distributor Install Image
Mustang MSD Pro Billet EFI V8 Distributor Install Image
3. Use the supplied break-in lubricant and apply it to the Mustang distributor gear.
Mustang MSD Pro Billet EFI V8 Distributor Install Image
4. Use a flat head screwdriver to remove the plug from the TFI module that is located on the stock distributor.
5. Remove each spark plug wire from the Mustang distributor cap and label them with a piece of tape and marker so that you know where each wire goes.
Mustang MSD Pro Billet EFI V8 Distributor Install Image
Mustang MSD Pro Billet EFI V8 Distributor Install Image
Mustang MSD Pro Billet EFI V8 Distributor Install Image
6. Press off the two clips on either ends of the distributor cap and pull off the distributor cap.
Mustang MSD Pro Billet EFI V8 Distributor Install Image
7. Remove the 90 degree boot from the Mustang starter solenoid and use the screwdriver to connect the post to the starter side of the solenoid. This will cause the distributor rotor to turn. Turn the distributor rotor so that it points at an area on the intake manifold.
Mustang MSD Pro Billet EFI V8 Distributor Install Image
8. Reconnect the 90 degree boot onto the starter solenoid. Place a piece of tape on the Mustang intake manifold and mark the spot where the rotor is pointing with a marker.
Mustang MSD Pro Billet EFI V8 Distributor Install Image
9. Use a distributor hold down wrench or socket and ratchet to remove the distributor hold down bolt and clamp.
Mustang MSD Pro Billet EFI V8 Distributor Install Image
10. Pull the distributor out of the engine. Notice that the distributor gear will move counter clockwise as it is pulled upward.
Mustang MSD Pro Billet EFI V8 Distributor Install Image
11. Remove the distributor cap on the MSD Distributor. Turn the Mustang distributor rotor so that it faced just left of the mark on the intake manifold. Place the distributor into the engine and notice that the rotor will turn clockwise as the distributor seats. Line the rotor up with the mark on the manifold.
Mustang MSD Pro Billet EFI V8 Distributor Install Image
12. Replace the hold down bolt and clamp and tighten it down.
Mustang MSD Pro Billet EFI V8 Distributor Install Image
13. Replace the distributor cap and attach the Mustang spark plug wires onto the distributor.
Mustang MSD Pro Billet EFI V8 Distributor Install Image
14. Reconnect the plug into the TFI Module located on the Mustang distributor. Reconnect the battery cable.
15. Start up the Mustang engine and double check the timing with a timing light.