I have a 17 foot 1987 Whaler Montauk with a 90 horse 1987 Evinrude on it. The prop that came with it is 13 1/2 X 17. I dinged it up pretty good and swapped in another I had. I cant read it but it looks like its 14 X 17 or 19. Is that enough difference to damage anything & is there an...