Universal Fit, Nodular Iron, Raw, Natural. Classic rams horn style exhaust manifold with a ground smooth appearance for great vintage looks. Features Corvette style 2-1/2-inch outlet for added flow and performance. Fits most Gen 1 small block Chevy heads with straight or angle plug design. Cast iron efficiency with the fitment of block-hugger style tube headers. Includes manifold flange and collector gaskets and mounting hardware for an easy installation. Black high-temp painted (Note-paint will slowly burn off with use).