I own a 1987 17' SportsCraft with a 140 Hp OMC SeaDrive. It has frozen on me. I can get my hands on a 1990 250 Hp OMC SeaDrive at a great price. Can I mount the 250 Hp on my 140 Hp Bracket? Are they the same bracket? If this is not an option doyou recommend me to Rebuild the power head or maybe...