Hi the head recently went on my legacy 2.5 gx limited non turbo, taken the head off and one of the valve guides has moved down lower than the other ones. had the other side grinded down so theyre all the same size but duno if id be able to get the valve stem seal on it now. will this cause a problem? will i need a new head. any help would be much appreciated as l need the cra back for my work. thanks