Whats up with these exhaust valves?

I was cleaning up the valves and looking them over to maybe use in a new combo since they had so little run time on them. Wont be using them now. Had a little hydraulic issue with the old motor. I hit water when porting the heads so I epoxied it. From all my internet reading I learned that the ethanol probably softened the epoxy, it let go and leaked some water in the cylinder. Live and learn.
been there, done that on a 440 CI head. I tried epoxy, that didn't work. Had to have them welded twice, before that worked. No fun.