Dano, What I've done with broken motor mounts is to use "Yellow Death" [3M adhesive] to glue the 2 pieces together then drilling the mount and using a 5/16" flat head thru bolt with a thin nut, countersunk bolting the now one piece m.m. to assure it stays together. I've done this on the old style "C" shaped 2 bolt mounts and the later style 3 bolt flat mounts. Works every time and I've never had one fail. 2 1/4" thru-bolts will work just as good too.