The protoplasm may be 72, but the spirit is 32!
Seems to me you might be able to get a stroked 302 alloy block with alloy heads, intake and water pump built by somebody like Keith Craft for around that. Since weight seems to be an issue I think an alloy block would be a high priority for me if I were building this cool project you've got going. I know one of my favorite builders from the Club Cobra forum doesn't like the 331...he says, as do we all, that there's no replacement for displacement and so he sells far more 347 8.2" Windsors than anything else...but for me, I like the sound of a high-winding small block, perhaps with solid lifters (I don't mind fiddling with the valve-lash now and then), so I might go with a 289 or 302...IMHO the smaller the crank throw the higher the engine can be safely rev'ed.I'd like to end up with a complete engine (including induction/ignition) for under $10K. Any suggestions?
This has been a fun thread, Cliff....wishing you the best of luck with the build!