ok, i know the non svt LIM has smaller primary and secondary ports than the SVT LIM. but what about the outer diameter? are they the same? reason i ask, i plan on port matching my UIM and LIM to the gasket size, but it seems that if i bore out my LIM to the gasket size, there doesnt seem to enough 'meat' on the primary port walls where the injector sits. Seems like i would bore right through. Any help would be appreciated.