I have not tried the bolt, but as coffinmaker points outs, its a whole different deal than the original. I have tried other parts (carrier and springs), and they do not work in the original.
Jim Bowie told me that he had successfully installed a short stroke kits in the original Winchester, but no longer does it because of the time and work ($) involved. Basically Uberti link pins must be installed in the original frame, and the left link modified to include the firing pin retractor stud on the back of the link. The link pins in the original 1873 are smaller than the Uberti pins - thus the need to use Uberti pins.
Actually, I think this would be a great project, with a follow up article in the CC, for Larsen E. Pettifogger! How about it Larsen?