Stud holes in gasket are plastic to reduce the risk of over torquing carburetor mounting nuts. 1/4" thick spread bore 4 barrel carburetor gasket kit with studs, nuts and washers.
1/4" Thick Insulating Carburetor Base Gasket Rochester Quadrajet 4MV w/ hardware
Q-Jet Spread Bore 4 Brl 4 Hole 1 inch Thick Phenolic Carburetor Heat Spacer
1" Thick Phenolic Carburetor Spacer Open Center Fits Holley AFB SBC BBC 4 BBL
Holley Edelbrock AFB 4 Brl 4 Hole 1 inch Thick Phenolic Carburetor Heat Spacer 1
NEW 2" Thick Aluminum Carburetor Spacer Square Bore 4 Port For 4150 Series Blue
Plastic 1" Thick Holley Carburetor Open Spacer IMCA UMP MOROSO MR GASKET