Sir- I have a 160HP O-320-B1A that has been together for a long time, but stored here in Montana. It was in my Dad's Piper Apache and he removed it to put it in a helicopter project that he never finished. I am trying to decide whether I should take it apart and send the crank and case out, or just find someone looking for an intact core. I can get you some logbook details and further info if you're interested.