Way back in the late 80s early to later 90s I drug lots of 68-70 B bodies home, some ran. That made them what 25 year old cars, used and abused! Back then there were always some out of state'rs looking for decent projects worth the $> I was in Missouri and I had cars. Guy calls from N. NY state asks about a 69 3838 4 speed Roadrunner I had just drug home. . It was like Feb and cold. I had driven it up and down the road a few miles an that was all. Seems to be good runner. Seemed is key word. Well, the guy flies into K.C.and I pick him up at the airport. That was 1 hr drive one way. He is about 35 and wearing nothing but a light leather jacket. It was cold! So we get to the shop he looks it over good, we drive it down the road just a ways and the heater core starts puking on the floor! Damn..... He says, I want the car, no problem, we will just bypass it. I said it will be a long old ride back to NY STATE! He was from up there where they had the winter Olympics (Lake Placid?) and he spent the winters working on snowmobiles and that is what he drove to work! I bet it was 800-900 miles.
I called him a few days later, he made the trip back no issues , just NO heat!!!