Fits the now discontinued S&S 512491 / S&S 90-4305 billet rocker covers. This replacement gasket kit that contains all gaskets and O-rings required for installation of the S&S Shovelhead style billet rocker covers. For individual O-rings only see: - 512503 Small rocker shaft - 512504 Large rocker shaft - 512509 Large rocker cover base
Fits: > 66-84 Sovelhead with S&S 512491 billet rocker cover kit; All S&S SH-series engines
