Reproduction open element air cleaner base for various 1966-69 GM high performance models. Each air cleaner base is manufactured in quality stamped steel and replicates the original in quality appearance and fitment. Features a 5-1/8 inch carburetor neck and recessed carburetor clearance. Measures 2 inches from the carburetor lip to the top of the wall and 2-3/4 inches from the base to the top of the wall.