I have a 1956 chevy 3100 cab on a 1955 3600 frame. There is a 235 engine in it and i was wondering if that engine was a numbers matching engine to either the frame or the cab. The block and head are currently at a shop being cleaned, but I have a few pictures that may shed some light. I'm not sure exactly where all the numbers are at on it. Also the number on the frame is something like 25500o27o, its hard to read as it has faded. The number on cab is 3A560019541, which is the vin#.