Ball milled black aluminum 12 inch oval air cleaner set. This air cleaner will fit most stock and aftermarket carburetors with a 5-1/8'' diameter carburetor neck like most Carter, Edelbrock, Holley, Rochester, and Quadrajet four barrel carburetors. It also has a raised aluminum base to raise the air cleaner above the carburetor flange. Comes with stainless bolt for mounting. Dimensions: 11-7/8"L x 8-1/4"W x 3"H.