Mr. Gasket Mr. Gasket Intake Manifold Gasket, 1.31 x 2.37 x 1/8-Inches, 2 Per Set Manufactured from the nitrile/cellulose gasket material that provides the best sealing and excellent durability They can be trimmed for modified ports and they come complete with end rail seals and a distributor gasket where appropriate For OE replacement, high performance street, drag racing, or oval track applications Port dimensions, 1.31 x 2.37-Inches, 1/8-Inches thick