First time replacing valve seals.
comp cams 518-16 valve seals, head machined for the seals with the corresponding comp cams cutter head.
I assume I need to tap them down the rest of the way?
Just don't want to break them....

 

Easier than I thought with the right size socket....

 

If all else fails, get a bigger hammer!!

 

Yep, 7/16" or 1/2" or 12mm 12 point deep sockets work