Originally Posted by bikingshearer

Here is another possibility, although you would probably have to pay gugie in pizza and beer to get it done. Step 1: Remove the fork. Step 2: Cut a little off the end of the steerer tube, chase the existing threads and extend/cut more threads to as long as you need. Step 3: Cut the fork at the midpoint (aerospace precision not required for this measurement). Step 4: Braze a plug into one of the recently-cut middle-of-the-fork ends. Step 5: Braze the other recently-cut end onto the plug such that the resulting plugged steerer tube is the amount longer you want it to be. Step 6: Reinstall the fork with the headset, spacers and brake hanger you need/want. Step 7: Give gugie his damn pizza and beer.

Ed Litton suggested and did exactly this me for so that I could use a fork from a ~1960 59cm Cinelli frame on a ~1965 64cm Cinelli frame (not the blue one you saw at Eroica CA; the silver one that runs Campy 10sp triple that gugie saw at Fauxrica last September). Well, Ed didn't have to modify the threads and I gave him cash money instead of pizza and beer, but otherwise it was this process. I turned out great. It adds a little weight, but you've seen me - at my size, a few extra ounces on a bike are seriously insignificant in the overall scheme of things.

Oh, and if you want to add some extra height to the steerer tube to get the bars a touch higher, you can build that in to the calculations of how much you extend the tube. I did. Or should I say, I asked Ed to.