If your head cracked then the engine overheated. Mine did the same thing. I found a used engine on car-part.com and had a mechanic install it for me. I replaced the water pump, upgraded the radiator and replaced the belt. When the mechanic took out the radiator he cut it open and found that someone had put in that stop leak stuff and it was halfway clogged with it. It cost me about 2 thousand for the entire job and that was about a year and a half ago.