Actually, did'nt some of the production 360's come with forged cranks, and I've been told steel also, but I find that one hard to believe.
It should be able to handle the Revs just as well as the other FE's, the bottom end is the same.
As for Mustangs, 67-70 body styles accept big block engines in there comparment rather easily. Thats what Ford put in some of them.
Not in enough of them for my taste