Thanks for the kind words ecmilley and Old Ironmaker
Ecmilley wish I was closer, still have not been able to remove the one hose, tried a tool at ctc but did not work,,it blew amazing heat even at -40 until we put the additive in to try to seal head gasket, used engine we put in works great thankfully, we flushed rad out with positive results, the additive crap came out like jello, thus I am confident the heater core could be saved, almost tempted to cut both heater hoses flush and resplice as a last resort, it still baffles my brain why they would have the good old fashion spring clamp on one hose but but put this Bull fitting on the other
Yes it is a bit of a job to replace the core for sure