No motor in the car, it was determined that it was a big block because the A/C suitcase is correctly indented for a BB car, To my understanding also that the BB car and 350 cars where all badged SS that's why I am here to ask , I work at Steve's Camaro Parts, and from all records we have looked at and everyone I have talked to have not seen this before, I was hoping that maybe, someone, some where? has the same or seen the same, I guess that someone in the 70's could have swapped in a BB air conditioning suitcase and a BB