2017 Harley-Davidson 107 Milwaukee Eight engine in a Road King Classic millennials electra glide

More Harleys to get Milwaukee Eight?

Harley-Davidson might extend their 107-cube Milwaukee Eight engines to some members of its Dyna and Softail range in the next couple of months.

That is purely speculation on our behalf, but it is based on history and mechanics.


Harley releases its next year’s models in September, but they also release two or three updated models in February or March.

Last year, one of those was the Dyna Low Rider S with the CVO 110 engine like the Softail Fat Boy S and Slim S.

Those S models continue and we don’t expect any more to get the 110 Screamin’ Eagle engine.

Harley-Davidson Dyna Low Rider S Sons of Anarchy Harley-Davidson might extend their Milwaukee Eight engines to some members of its Dyna and Softail range in the next couple of months.
Harley-Davidson Dyna Low Rider S


However, the 107-cube Milwaukee Eight engine from the Touring range could easily make its way into the Dyna range as they are both rubber-mounted.

It doesn’t stop them being introduced into the Softail, but it would be an easier fit in the Dynas.

In fact, the new Milwaukee Eight has a single internal counterbalancer that cancels out 75% of primary vibration, so it eliminates the need for A- and B-design bottom ends as in the Twin Cam motor.

That means it is an even easier fit in the frame-mounted Softails.

Who knows, they might even release some new “S” models with the CVO 114-cube Screamin’ Eagle Milwaukee Eight!

2017 Harley-Davidson CVO Street Glide with 1124 Milwaukee Eight V-Twin
114 Screamin’ Eagle engine

Official comment

We asked Harley-Davidson Australia marketing director Adam Wright for official comment on our speculation.

“Unfortunately I’m unable to make comment on any future model releases at this time,” he says. 

We might be totally wrong and the M8 won’t make it to any new models until September or even 2018 … but we certainly hope we’re right!

Milwaukee Eight

The engine is named Milwaukee-Eight because of where it’s made and the number of valves in the twin cylinders. In Australia, it’s already being called the M8 or “mate”.

It’s the ninth in the lineage of the company’s iconic Big Twin engines and comes in air-cooled and water-cooled variants. Only bikes with lower fairings can accommodate the water-cooled variant.

  1. Had my first ride on a Harley this week. Totally amazed, the bike was a 110ci CVO softail. It rode beautifully and i can say there will be a Harley in the garage in the near future but having seen the reviews on the M8 engine will wait until the heritge softail has one. Still gob smacked at how the Harley rode!!!!!

  2. Hinchy, almost certainly this will happen. In fact, the York assembly line was shut down briefly earlier this month, perhaps for a new model machinery update?
    Gonna be fun!

  3. Thinking that in June/July the 2017/8 new super-glide will be introduced with this motor & will sell their socks off in the process, you read it her first!

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