After putting 100 miles on my CB750K6 rebuild, I'm getting ready to pull the engine and replace the Athena gaskets. The valve cover gasket leaks on both sides and the clutch cover gasket is also leaking. The price is right and the service from Parts-N-More is great, however the gaskets are junk (the head gasket was a Victor brand and is OK) Save your time and money and look for another brand of gaskets.
Mike