I'm not trying to be a rebel, but ok. Heres the whole story summed up.
I have a motor I purchased from Pacific Motors about 3 months ago. It has all new everything like water pump, seals, timing belt and all that stuff. It ran hot one time and it WAS the thermostat (I know for sure that time). I had a new one put in and a few weeks later it started running hot again. Everyone said I probably had bought a bad thermostat so I put another in it. It did GREAT for 5 days then it started again. I just went ahead and put another thermostat in it to get home that day cause I knew that would fix it and it was fine once again, the next day I flushed out the radiator and so far its doing good, but we'll see in a few more days. Everyone has told me to make sure I burp the system, so I did what I was told and let it run for a little while with the cap off. All I'm asking is if this does not work, what else could it be?? And If you say, its the head or its the radiator or something PLEASE explain why a new thermostat would fix it for a few days.