I would also appreciate help in identifying the 235 I bought this past weekend. The PO says it came out of a '57 Chevy truck.
Numbers and locations as follows:

Engine block stamp (on flat plate by dist.) FIII5H (These are the letter "I")

Head casting # 3836848

Manifild casting # 3836822

Engine block casting # (below and right of dist.) 3837004

I've gone to the Hemmings and Inliners sites linked to in the previous posts and cannot find much. Any help about the date of manufacture would be appreciated.

Chuck

Chuck
1950 Chevy 1/2 ton (all original)
1951 Chevy 1/2 ton (future streetrod)
1941 Chevy coupe
1938 Chevy coupe streetrod