I had the car idling sitting in the driveway last night working on the wiring for my gauge cluster when all of a sudden the heater core decided to spring a leak. I've read the threads on taking a 124 core and cramming it in the stock heater box. I really don't want to have to modify the box or the flap control arm to accommodate the 124 core. Anyone have a "good" used core they might want to part with? Midwest is out... I ended up leaving the core with a local rad repair shop, he air pressure tested it in an old kiddie pool and it looked like an aquarium bubbler! He's gonna fish around in his pile of old cores for a suitable donor core and then possibly swap the tanks if he can't source a new one. Probably not gonna be cheap. He claims that the fins, not the tubes are some sort of steel and are very hard to seal? I told him to give me a quote first as the last guy wanted 400.00 bucks to fab one up! Anyway, anyone got a core, offer up!