All Cometic top-end gasket kits are complete with head and base gasketsCometic head gaskets are manufactured from non-asbestos flexible high-performance aramid fiber laminated to a stainless steel coreCometic aramid fiber material is impervious to fuels, coolants and oilsEST (EXTREME SEALING TECHNOLOGY) TOP-END KITSEnsure a critical seal and superior durability that meets and exceeds OEM specificationsGaskets are made from quality materials such as MSL (Multi-Layer Steel), rubber-coated steel and aluminum foam materialInclude valve stem seals and copper crush washers