COMETIC Aramid Fiber is a premium hi-temperature, hi-density, creep resistant material that requires no re-torquing and is fuel resistant. All Cometic fiber materials are asbestos free and require no additional sealants. PartNumber : cgC4354-064 Description : Exhaust Manifold Gasket Engine : Ford Small Block V8 SVO/Yates Material : AM Thickness : .064" Thickness : .064in Position : N/A Add-On Part : NA Title : C4354-064 - Cometic Gaskets - .064in. Exhaust Manifold Gasket. Exhaust, Mufflers & Tips::Exhaust Gaskets