You can do the same with big blocks & small blocks. So it is now a moot point IMO. If you search the net enough you can find many many A & RB builds. The difference here is the little guy (us) should be doing this without major help from a machine shop. Obviously most here can not even refurbish heads much less machine a block.
This contest idea can help create more of a base of how people did their build and what it does on the dyno. No shame in a copy cat build.
When J.Rob figures out some rules, then it’s time for asking questions. Until then, it’s all speculation. The only thing I see so far that he wants to do is a 440 build and perhaps a dyno session at Nicks Garage.
What iron heads? I have W2’s at the ready!
An aluminum head is the only real reasonable replacement for the average guy. The real trick here is are we allowed to port it or not?