1965-79 Small Block Chev Sump Gasket, Rubber And Steel

If you are not sure of the original application or model year of the oil pan you plan to use for your small block Chevy build, you can take two simple measurements to determine the correct oil pan gasket needed. By measuring the width and depth of the front seal area you can confirm if the oil pan in question uses a thick or thin oil pan gasket.

• Thin oil pan gasket will measure 5-1/2-inch wide and 2-1/4-inch deep
• Thick oil pan gasket will measure 5-3/4-inch wide and 2-3/8-inch deep