No, I doubt it would be a headgasket issue. Before putting that new stat in boil some water and have a accurate thermometer (and the new stat as weel as the old stat in the water) to watch the temp.
You want to see at what temperature these things are opening up at. They both should open at 195 degrees I beilieve. Should say on the new box of the stat. It the new one does, pull it out of the water and start installing it. Watch the old one and hope it doesn't open until a much higher temp.
Saturday, March 29th, 2008 AT 12:48 PM