MSD 8572 Pro-Billet Mechanical Tach Drive Distributor w/Vacuum Advance Features:

• Sealed ball bearing and long sintered bushing guide
• 0.500 in. Steel shaft for high-RPM accuracy
• A special reluctor is mounted to shaft for triggering magnetic pick-up
• Adjustable mechanical advance assembly for optimum performance
• Greasable compact tach drive assembly to clear firewall and linkage

MSD 8572 Pro-Billet Mechanical Tach Drive Distributor w/Vacuum Advance Notes:

• Must be used with MSD 6, 7, or 8-Series Ignition Box or equivalent
• If utilizing a square cable to the distributor MSD Ignition Tach Drive Adapter Tang to Square Drive 8491 is required (sold separately)
• Apply a liberal amount of included cam & lifter lubricant to the distributor drive gear before installing in engine

Emissions Note:

This part is legal for sale and use on Emissions Controlled Vehicles, in all 50 states, when used in accordance with the manufacturer's application guide because it has California Air Resources Board (CARB) Executive Order (EO) number #D-40-39.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

FAQ

How do you test a MSD Ready to Run distributor?

• Refer to MSD 8572 wiring diagram for proper connections.
• Use a multimeter to check voltage and continuity.

What does MSD distributor mean?

• MSD distributor optimizes ignition timing and spark delivery.
• Improves engine performance and efficiency.

What are symptoms of a bad distributor?

• Misfires, rough idling, and decreased power.
• Engine stalling or difficulty starting.

How do I know if my distributor module is bad?

• Check for no spark or irregular spark output.
• Use diagnostic tools to assess module functionality.