Hi All
Well I got lucky Obsolete Chevy Parts out of Nashville, Georgia
http://www.obschevy.com/index.html had 24 NOS Heads in stock, now they have 23. Numbers say this should fit all 216 41-53 though it will need the later valves which is fine because I was going to replace the valves anyway.
I've had good luck finding odd parts from them in the past, they're the same out fit I got the main shaft for the transmission a couple of years ago, along with some other bits.
Thanks Bob and Alex- I thought about having the head welded and new seats machined in and I suspect with the other work the head would need any way like new valve guides and having the face as well as the intake and exhaust area ground to get good seals that a new head will be about the same cost or cheaper.
Will let you all know as soon as it comes in.
Cheers Phil