I have an 87 camaro rs v6 2.8 (I know I wanted a v8 but this is the only one I could find) and it overheated on the drive back from buying it (about an hour and a half in) and then it overheated then we limped it home, found out that all it had in it was water and stop leak -_- so I then flushed it my best but couldn't get all the stop leak out of the radiator, filled it with coolant, and hooked up the fan (not original) correctly, started driving it, eventually it overheated about a month of regular driving later. I now actually have a real temp gauge and I have flushed it again after driving it for a while to break away that stop leak and so now about 95% of the stop leak is out and it has the correct amount of coolant, I also put in a thermostat since it overheated because it literally did not have one where it should be. Now the temp gauge is usually around 190 which is perfectly normal.. Do you think it was the thermostat? I'm still going to put a stronger fan in because I haven't done much super heavy driving, Ive only driven at about an hour at a time since the last time it overheated.. Anyone know what may have made it stay cool?

 

Who knows maybe thermostat was stuck. These little motors can take a lot of heat before they blow a gasket. Make sure you have the air dam below the radiator. If you don't have it, it can overheat.