I am curious why the O-320 did not fit your 152 mount; mine bolted right up. Did you have a Dual (as in the one housing/drive for both) Magneto version O-320?
Joey, I think Jim and I have a firewall for you; is yours a five point mount? We may also have access to an O-320,150/150, 5 point motor mount...and cowl....and 150/150 STC...(but the guy who owns it is REAL southern...YaLL have to talk real slow....
" BTW the O-320 does not fit on the mount perfectly, however, this may be due to the way the engine lord mounts were done.
Anyway, I am looking for a good, non cracked up firewall for a 1965 project, and the 1966 is the same.
Gordon Cragg"
713-502-72744