This EST (Extreme Sealing Technology) Top End Gasket Set uses the best possible materials available for every gasket in the kit. There is no compromise in this kit, MLS (Multi-Layer Steel) head gaskets, blue Viton valve stem seals, and AFM (Aluminum Foam Material) gaskets for cam and rocket box covers make these truly the best kits available. Includes every gasket and seal from the base gasket right up to the air cleaner.Fits: 95”& 103” Twin Cam Engines – includes .045” head gasket. 480 EST Hi-Performance Top End Gasket Kit (set).