Absolutely, if they're dimensionally correct for the job. The fact that the crown race can't be pressed on with a slide hammer indicates that the crown is larger than the 26.45 (.05 oversize) for the race and ignoring that is a good way to crack the crown whether it's by excessive pressing force or by thermal expansion. As far as I'm concerned the OP or anyone else is welcome to force the race on, after all it's their race, but they should be aware if the likelihood of fracturing it.