− Decrease quantity for Gaskets, Manifold, Intake, Composite, 2.05 in. x 1.82 in. Oval Port, .060 in. Thick, Chevy, 396-454, Set Quantity + Increase quantity for Gaskets, Manifold, Intake, Composite, 2.05 in. x 1.82 in. Oval Port, .060 in. Thick, Chevy, 396-454, Set Add to cart