Carb Adapter Adapter squarebore 4-Barrel carburetors to 2-Barrel squarebore intake manifolds Mr GasketThis Mr. Gasket Carburetor Adapter Kit adapter 4 bolt, 4 barrel carburetors to 4 bolt, 2 barrel intake manifolds or 4 bolt, 2 barrel carburetors to 4 bolt, 4 barrel intake manifolds. It is die cast aluminum, 1 inch thick with an open center. Installs simply between the intake manifold and the carb. Gaskets, bolts, nuts and washers included. Open Center Die Cast aluminum Includes Hardware and Gaskets Thickness 1 Inch (with out Gaskets) Details: