Test Run Of The “Flying Millyard” 5-Liter V-Twin Engine.

Ordinary is not his style. British engineer Allen Millyard use factory engine parts to build engines that no other engineers have ever thought of building. Or he creates almost from scratch new motors with very unique configurations, creating in a small garage workshop wooden patterns to cast aluminum crankcases, patiently building by hand connecting rods and other parts. Most recently, Millyard built one-off V12 engines, a street bike from a Didge Viper, and 5-liter V-Twin out of 2 cylinders from a Pratt & Whitney 1340 radial engine for a Flying Merkel type board track motorcycle. The video below is about the first test run on this new unique engine in the family garden. Sounds very good……

15 Responses to “Test Run Of The “Flying Millyard” 5-Liter V-Twin Engine.”


  1. 1 Zipper Jan 14th, 2015 at 9:12 am

    A talented man. ..Z

  2. 2 Nikki Jan 14th, 2015 at 10:09 am

    Amazing.

  3. 3 Fritz Jan 14th, 2015 at 12:54 pm

    Sensational! This person is very talented and has the discipline to see the project from beginning to successful end. Too bad there aren’t more people like him in the West.

  4. 4 cafesportytc Jan 14th, 2015 at 1:06 pm

    looks like the same , or similar backyard to a gentleman who built a Radial engine using VW barrels and cut down VW cylinder heads.. very cool to see that some people don’t just dream… they build it.

  5. 5 Sam Jan 14th, 2015 at 5:05 pm

    Seeing the flames from the rear cylinder shooting toward the gas tank/line were exciting.

  6. 6 Blackmax Jan 14th, 2015 at 9:11 pm

    A talented individual
    Very Cool !!!!

  7. 7 nicker Jan 14th, 2015 at 9:40 pm

    The very definition of “Industrial Art”…… “Form following function.”
    Any of the Prat air-cooled Heads & Cylinder assemblies of that era are drop-dead gorgeous.
    Even the original P&W blueprints for-em were works of art.

    And the engineering to pull it of….. Way Cool…!!!!

    -nicker-

  8. 8 Sportster Mike Jan 15th, 2015 at 5:36 am

    Have seen him riding this at Poole Quay, Southern England and at other places

    He fired it up, asking the guy standing next to the exhaust to move, as it might backfire and shoot out a load of carbon (and spit out all over his white leathers), and it sure did!!

    Lovely work, but I like his SS100 Honda best (2 50cc engines as a V Twin almost a mini Ducati

  9. 9 JackS Jan 15th, 2015 at 7:59 am

    Wow!

  10. 10 More Dickstien Jan 15th, 2015 at 11:47 am

    nice love to see it when it’s finished

  11. 11 Moe Dickstien Jan 15th, 2015 at 11:49 am

    love it

  12. 12 1550tc Jan 15th, 2015 at 3:42 pm

    Got love these types of guys and their ingenuity !!!!!!!!!!!!!!!………now just hook up a water pump and in the spring you can clear the fields in ND in 3 seconds 🙂

  13. 13 J.R. Jan 19th, 2015 at 10:55 am

    Quite obviously British. Interesting use of P&W head/cylinder combination. The Skinner’s Union carbs are a stroll back to the 1980’s. I guess you use what is available when playing around. Nice castings and machine work.

  14. 14 Sam Jan 19th, 2015 at 11:39 am

    Just a note about terminology. A back fire is through the carburetor. An after fire is out the exhaust.

  15. 15 Stony Crane Jan 19th, 2015 at 11:55 am

    Brilliant bit of kit as the Brits would say. Bang on!

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Cyril Huze