You will need a new 1" threaded headset though; I recommend choosing your new headset before you thread the fork so you know your exact steerer length with headset stack and headtube height calculated in. Also remember that fork crown races and headtubes are measured at either 27.0mm (JIS) or 26.4 (ISO), so make sure you put a caliper on there to be sure, unless of course someone can chime in and provide that info.