On this parts fiche the Seal,vlv Stem is the most specified component.
Parts such as the Gasket Kit A: Seal,vlv Stem, Gasket,head Cover (nas), O-ring,22x2, O-ring,21.9x2 are included in the Ch80 Elite 80 1996 (t) Usa Gasket Kit A parts fiche.
The most reasonably priced component used on the Ch80 Elite 80 1996 (t) Usa Gasket Kit A is the O-ring,22x2.