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  1. C

    Minimum hp for Dolphin 20

    Thanks for the replies. The guy I bought boat from said the Merc caught fire and that's why he's selling it. He was quoted $1500-$2000 to repair, but don't know how accurate that is. It's a 1978 Merc, I think referred to as the Tower of Power, straight 6. I opened the cowl and really it...
  2. C

    Minimum hp for Dolphin 20

    Hi, owners/experts. I'm in infrequent poster with more questions than answers, and on my second old Grady. I love these old hulls (plus the only ones I can afford). This time have a 1978 Dolphin I likely need to repower. It's rated for 210 hp, I think. Has an old Merc 150 on it now. I'm...