t comes with springs too and im not a machinist so not sure how many valves are reusable but possibly 5 , maybe 3 maybe 4 out of the 8 that come with it. Also i did not grind on the gasket surface in pic and barely removed any material. It was flaking aluminum from it having small dings from dirt or carbon or something? But i just smoothed it out so nothing flaked I Head has numbers matching (cam bridges and head are original to eachother) I have the cams from it too if you need them Comes with what’s in pic + springs Needs valve job Fits rf4 ktm engine 2007-2012 sxf sx-f and quad 450sx 505sx 505. and smr and a certain year of xcf? You‘ll have look at your bike to confirm. It comes with the valve cover too Also if you want it contact me to negotiate