Mercury racing motor identification help

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  • June 18, 2018 at 11:03 pm #10292
    cheetahgod
    Participant

      Need help identifying this mercury racing motor for a friend. Thanks.

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      June 18, 2018 at 11:04 pm #78144
      cheetahgod
      Participant

        more pics

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        June 18, 2018 at 11:55 pm #78149
        chinewalker
        Participant

          US Member

          It’s a 40 or 44 cuber. What block name is on it? Starboard side, near the port covers.

          June 19, 2018 at 12:58 am #78155
          outboard315
          Participant

            1955 Mark 55 serial number in the one end of the powerhead, mercury 500 carbs. Home made pipes, although they may still be made by a known maker.

            June 19, 2018 at 3:53 am #78158
            dave-bernard
            Participant

              US Member

              outboard315 is correct.
              40 cubes.

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