Sorry for not updating this for a while but since this is a sold head the progress is subject to the new owners available time.
This is the head with all the initial machine work done. I pressure tested the casting at 75 psi and it held fine.
I messed up and spot drilled the wrong hole pattern for the exhaust flange. The head is 356 heat treated to T6 so I wasn’t too interested in putting any unnecessary heat on it by welding them up. They are behind the exhaust flange anyway.
The owner of the head did his own port cleanup. He is going to finish blending in the port match after the valve work is done.
The head has been vacuum resin impregnated and is at the machine shop having the valve work done.