Cometic Street Pro GM 1967-88 350ci 1970-76 400ci 4.165 Small Block Top End Gasket KitCOMETIC StreetPro Kits cater to the budget minded street rodder who is looking to purchase a kit with all necessary gaskets and seals needed for their rebuild. Quality gasket materials are a priority in StreetPro kits. Kit materials include: MLS, AFM, Aramid Fiber, and Armor Clad. This Part Fits: Year Make Model Submodel 1969 1971,1973 1974,1976 1980 Avanti II Base 1977 Buick Century Base 1977 1979 Buick Century Custom 1979 Buick Century Special 1977