MSD Lockout Kit for GM OE HEI Vac. Advance SC05501 the Firewall Feed-Thru provides 1/2"

the Firewall Feed-Thru provides 1/2" of insulation to ensure that the coil's spark reaches the distributor

Spoiler Wicker Bill

055" Thick Steel Core

electric fuel pump that fits most popular EFI applications

GM Fullsize Truck 2020-24

MSD Lockout Kit for GM OE HEI Vac. Advance SC05501 the Firewall Feed-Thru provides 1/2"Will not work on MSD Pro Billet HEI PN 8365 or 83653. Lockout vacuum advance Easy install Works on most GM HEI distributors Perfect for racing applications Both of these parts are standard equipment on the MSD Circle Track HEI distributor but will work on most GM HEI's. Product Description: Spark Advance Lockout Vacuum Advance Plastic Black MSD GM OE HEI Distributor Sold Individually Racers never stop experimenting as they search for every way to