Mr. Gasket 1932 4-Barrel to 4-Barrel Carburetor Adapter Kit Open center adapter measuring 3/4" thick (without gasket) Quick and easy installation Adapts square flange carburetor to 4-barrel intake manifold Gaskets, studs, nuts and washers are included in the kit Not meant for Holley 4500 and OEM manifolds with exposed exhaust crossover tube