i lined up the head bolts on the bench when i pulled the head. if i put 1 of the 2 shorter bolts in a wrong hole would that account for this. what happens is i drive a half hour and the engine begins to get hot. the coolant in the overflow bottle rises almost to the top w/ a corresponding level drop in the radiator. when i shut down i hear slow gurgle for a few moments but the level in the bottle remains high. thanx, rick