ID this powerhead?

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  • January 25, 2020 at 5:29 pm #193078
    stanley
    Participant

      US Member - 2 Years

      The manifolds appear to be neatly cut off originals.As to motive,yes to any or all of above.

      January 26, 2020 at 12:32 am #193105
      JOHN HOLBIK
      Participant

        Wish I could post pictures.
        My 1926 a25 came with copper cut out exhaust pipes they are about 4 inches long and 1.5 inches wide. I doubt they are factory but quite well done.

        January 26, 2020 at 1:55 am #193106
        Mumbles
        Participant

          My 1924 normally aspirated nitro burning A-25R retains the stock exhaust manifolds but uses a tuned two-into-one exhaust system to extract maximum power and RPM out of the powerhead. This motor would probably become unmanageable if it was fitted with a turbo on the exhaust outlet!

          1924-Johnson-AR

          • This reply was modified 4 years, 3 months ago by Mumbles.
          • This reply was modified 4 years, 3 months ago by Mumbles.
          • This reply was modified 4 years, 3 months ago by Mumbles.
          January 26, 2020 at 7:50 am #193129
          stanley
          Participant

            US Member - 2 Years

            I think you all have stumbled onto a long forgotten class of early race engines.

            January 26, 2020 at 10:05 am #193142
            The Boat House
            Participant
              stanley wrote:

              I think you all have stumbled onto a long forgotten class of early race engines.

              January 26, 2020 at 10:07 am #193143
              2fast4me
              Participant

                SIT DOWN, SHUT UP, AND HANG ON!

                2Fast4Me

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