Yes. As long as the frame takes a 1" fork,fork is 1" threadless,and the headset is a 1" threadless. You will need to switch to a threadless stem as well.
If you've never done one search on youtube. They have how to video's that will walk you through it.
You said the bike has a 1" headtube?
http://www.choppersus.com/store/product ... s-1%22-BK/
Alan has them in 1" threadless and threaded. Mention that you are a member on this site and he'll give you a discount.
1" threadless headsets are available through them as well.You'll also need a...