Valve Cover Gasket Set for Ford The Edelbrock valve cover gaskets 7563 provide excellent sealing integrity and conformability for easy installation. The multi-layer construction has two highly compressible, high rubber content, fiber-reinforced outside layers which are chemically bonded to a high strength composite core. This unique core-reinforced construction has a radial strength to resist high-vacuum or blow-out conditions. Edelbrock valve cover gaskets are an Edelbrock product. Specs Application Universal GTIN 00085347075638 Emissions Code N/A Color Gray Material Core-Reinforced-Composite Thickness 0.3125 Inches