Newbie bus owner

[hugum]

I bought a 1979 International Thomas it was running great had problem with Carburetor and now I need another one, I can't find any info on the carb. no #'s no tags, and the engine has no ID that I can find I was told that it is probably a 345 but before I can get the right Carb. I need to know the engine, can anyone tell me where I might find an engine stamp or info, from all the pictures I have been looking at it looks like my carb. is a 2245 or 2210 they seem to look alike in the pictures does anyone know what the differances are in the two?
really in a mess,
Mark

[bdavis441]

right side of the block towards the front, stamped on a pad. will probably say v345. If it's a 2bbl, it's probably a 345, I dont think (could be wrong) the 392 came with a 2bbl carb.