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