Fitments
99-17 Twin Cam with S&S 79cc SuperStock heads; 84-99 Evo Big Twin with S&S 76cc and 82cc SuperStock heads with flat top pistons (NU)
Part Description
S&S, SuperStock exhaust valve, 1.575" diameter
Replacement for S&S Twin Cam 531829/531830/531833/531834 79cc SuperStock heads and for S&S Evo B.T. 76cc & 82cc 512522/512523/531904/531905/531906 SuperStock heads.