Small Block Engine Identification?

Searching on the web and getting conflicting results...
Cast # 3932388
ID T0808HU
What do I have?
It is not in the original car...
Thanks!

HU suffix can be one of three installations:
65 COR 327 350HP 1x4bbl L-79 4speed with a/c
67 IMP 327 275hp powerglide 1x4bbl L-30
69 IMP 350 255hp powerglide 1x4bbl LM-1

The block casting 3932388 is listed as being a "68-79 350" car OR truck so it appears to be the 69IMP source. Could be a 4 bolt main block

Thanks! Engine now sits in a 1954 Chevy truck 3600. The story goes the engine came from a 68 Camaro but wanted to verify what it actually is.