Mechanical Advance Lockout for 8362CT

Quick easy components to lock out timing on GM HEI distributors.

PART# 88363

$14.73   Suggested Retail
$13.26   Your Price
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Will not work on MSD Pro Billet HEI PN 8365 or 83653.


MSD offers two kits to make locking out mechanical and vacuum timing advance in HEI distributors an easy task for Circle track racers. No more welding a tac on the mechanical advance weights or trying to find a way to keep the vacuum advance from moving once the canister is removed. MSDs mechanical advance lockout plate replaces the mechanical advance weights and simply slides over the pins on the shaft and the advance assembly to eliminate any mechanical timing advance. The vacuum advance block off kit bolts in place of the vacuum advance canister on a GM HEI distributor to neatly and effectively lock timing solid. Both of these parts are standard equipment on the MSD Circle Track HEI distributor but will work on most GM HEI's.


  • Quick, efficient way to lock out timing on GM HEI distributors
  • Lockout mechanical advance
  • Easy install
  • Works on most GM HEI distributors
  • Perfect for racing applications


Emission Code3
Product TypeAccessory
Part Number88363


This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.

Tech Resources

Will not work on MSD Pro Billet HEI PN 8365 or 83653.
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    *Free Shipping & Handling only offered to the contiguous US on orders over $100.

    Some parts are not legal for use in California or other states with similar regulations.