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Pratt and Whitney V-Twin

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    Pratt and Whitney V-Twin

    Allen Millyard built a 5 liter V-Twin out of two cylinders from a Pratt and Whitney 1340 radial, with handmade parts, casting the aluminum crankcase. Intended for a board track racer.


    SU carbs, too.
    ---- Dave
    79 GS850N - Might be a trike soon.
    80 GS850T Single HIF38 S.U. SH775, Tow bar, Pantera II. Gnarly workhorse & daily driver.
    79 XS650SE - Pragmatic Ratter - goes better than a manky old twin should.
    92 XJ900F - Fairly Stock, for now.

    Only a dog knows why a motorcyclist sticks his head out of a car window

    #2
    Holy s4ite, that thing is monstrous. Munch would have scale envy.
    "Thought he, it is a wicked world in all meridians; I'll die a pagan."
    ~Herman Melville

    2016 1200 Superlow
    1982 CB900f

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      #3
      Originally posted by GS1150Pilot View Post
      Holy s4ite, that thing is monstrous. Munch would have scale envy.
      With his lousy prinze engine? ya if he could, Millyard is a legend with his hacksaw
      sigpic

      Don't say can't, as anything is possible with time and effort, but, if you don't have time things get tougher and require more effort.

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        #4
        The P&W

        How good is that, couple of young guys cobbling that together .
        Wish I was there neighbour , the noise of that v twin would be like music.

        Well done guys.
        79 GS 750 E

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          #5
          This might be the same guy who built a radial engine out of motorcycle v-twin top ends...
          Charles
          --
          1979 Suzuki GS850G

          Read BassCliff's GSR Greeting and Mega-Welcome!

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            #6
            Here it is in a bike:
            This is the first test run of the Flying Millyard bike. The engine was made around a pair of Pratt & whitney aircraft cylinders and has a 5 3/4 inch bore and...

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              #7
              Ya, Allen Millyard is a legend, he does insane things with bike engines.

              Here is a little 100cc twin he built out of a Honda SS 50cc



              You want to see what he does with Kawasaki triples.

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                #8
                lucky kaiser's 5 ltr v twin SUPERCHARGED !!!!!!!

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