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  1. 1

    Max HP for a 18' I/O Supersport?

    Hi folks, I am new to the forum but can already see the benfits of everyone's knowledge and experience. Anyway I bought an 18' foot I/O Supersport with a bad 120 hp OMC. I am looking to repower it with a Mercruiser and was wonder max the I/O I can put in it? I am looking at either ...
  2. 1

    ID please?

    Hi folks, This is my first time posting and I need some help wading through all this info. I bought a 1975 (the seller thinks?) 18' Starcraft Bowrider with an inboard 120 hp OMC. Is this a Super Sport or an V? White with white and light blue upolstry. Love all the restoration tips...
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