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.

Features:
  • Quick, efficient way to lock out timing on GM HEI distributors
  • Lockout vacuum advance
  • Easy install
  • Works on most GM HEI distributors
  • Perfect for racing applications
  • More From This Category

    MSD Wire Retainer/Coil Cover, Extreme Output, Red, Pro-Billet Distributor, Each

    MSD Wire Retainer/Coil Cover, Extreme Output, Red, Pro-Billet Distributor, Each

    $113.11

    MSD Distributor Wire Harness, Replacement 3-Pin, For Ready-To-Run Distributors

    MSD Distributor Wire Harness, Replacement 3-Pin, For Ready-To-Run Distributors

    $47.65

    Proform , HEI Distributor Advance Curve Kit, Fits All PROFORM HEI Distributors

    Proform , HEI Distributor Advance Curve Kit, Fits All PROFORM HEI Distributors

    $16.31

    MSD Distributor Cap Adapter, Spacer, Black, Clamp-Down, Billet, For Ford, Each

    MSD Distributor Cap Adapter, Spacer, Black, Clamp-Down, Billet, For Ford, Each

    $74.56

    MSD Reluctor, Billet Steel, Distributors, Machine to Tune, 8-Cylinder, Each

    MSD Reluctor, Billet Steel, Distributors, Machine to Tune, 8-Cylinder, Each

    $216.34