Yes, I have two of those AMC 304 V8's, each in CJ-5 Jeeps.

It is the same basic engine block as the AMC 360, just different bore and stroke length.

The entire AMC family of V8 engines, from the 290 CID to the 401 CID, use roughly the same cylinder block.

There was a deck-height change (1966 - 69 = 9.175" versus 9.208" for the 1970 and later engines.)