Hey everyone. I am thinking of buying an 90 sc auto with 115000 miles. According to the owner, the headgaskets need to be replaced. As of right now it's all i know. He said the interior is in near perfect condition. In the past i have owned 4 thunderbirds, this was over 10 years ago, and only issue i had with one was a 94 sc that blew the headgaskets. at the time i payed about $900 to get fixed but car would overheat once in a while. Anyway,the owner of this current sc said for me to make him an offer. How much would a HG job cost?and what else could go wrong along with a HG problem.also, would any typical repair shop be able to do a good job on an sc? Any suggestions,advice would be helpful.thanks .