Desperately need experienced opinions on Engine Identification

Well, if you can get him to send you a pic of the assembly stamp on the front of the block on the drivers side just under the head, it would tell you the year and day of assembly, and the size of the motor. That would help narrow down whether it’s from a 67 car or not. It’s possible this engine languished in the factory and was assembled for a 67, highly unlikely, but possible.