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  1. S

    same outdrives?

    Does the 165 horse 6 cyl. mercruiser take the same outdrive as the 470 170 horse 4 cyl, are the outdrives interchangeable? are they the same gear ratio?
  2. S

    Mercruiser torque on head bolt 3.7 470

    can anyone tell me the torque for the head bolts on a Mercruiser 470 3.7 1977?
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