Hope you can offer some advice, working on my neighbors shoebox. Is a nice car, all original except for a newer 302 in it. He bought it a year ago and never drives it ... I asked why, it is overheating he said. So I offered to fix the cooling system, T-stat was stuck, water pump bearings are gone, electric fan dead, I flushed the radiator, new hoses. Has a 195 T-stat and runs at 190 when warmed up, goose the throttle and cools right down to 180 now ... cooling system is now working. But while idle in the driveway with no radiator cap, and not over heated, it is blowing water out the top of the radiator. I am guessing a blown head gasket, will buy the test kit today to confirm it. My question is, moving forward from here. The motor runs smooth and solid, just touch the key and it is running. It runs smooth, it has plenty of power. Does anyone think it is a good idea to just slap a set of head gaskets on it? Or do I need to take the heads to a machine shop and checked? Since I have not yet confirmed the head gasket, any other possibles on a 302 ford blowing coolant out the radiator?