The Milwaukee Eight (M8) platform is one of the most popular Harley-Davidson engine platforms for high-performance biking and customization.
It is distinguished by its large displacement and its high power output and has become a prominent choice among sportbike and touring riders.
This platform offers two versions, each showcasing different levels of power and performance.
The Milwaukee Eight 107 and the Milwaukee Eight 114 are two variations of the Harley-Davidson engine.
They come with slightly different internal architecture and engine specs as well as a notable performance difference that has earned them their own categories.
We will compare and contrast the Milwaukee Eight 107 and Milwaukee Eight 114 to help buyers find the right model for their needs.
Contents
What is the Difference between the Milwaukee Eight 107 and the Milwaukee Eight 114?
The Milwaukee Eight 107 and the Milwaukee Eight 114 are two popular engine variants of the Harley-Davidson platform.
The Milwaukee Eight 107 offers 107 cubic inches of engine displacement, while the Milwaukee Eight 114 offers 114 cubic inches of engine displacement.
These differences have a notable effect on the engine’s power and performance.
The 107 model offers a good power output but may lack the extra punch that comes with the 114 variant.
The Milwaukee Eight 114 is the larger version of the platform and it offers more power and torque, making it better suited for aggressive riding and long hauls on highways.
The 107 engine is bigger and heavier than the 114 engine, but it is also cheaper than the 114.
Moreover, the 107 model is the most popular model in the Harley-Davidson motor platform because of its accessible price, robust build, and decent power output.
How Do They Compare on Performance?
The Milwaukee Eight 107 and the Milwaukee Eight 114 offer different levels of power and performance.
The first and most noticeable difference is the engine’s displacement. The 107 engine is 107 cubic inches and has a compression ratio of 10.0:1 while the 114 engine is 114 cubic inches with a compression ratio of 10.5:1.
The higher compression ratio in the 114 engine translates to more power and torque output. The 107 engine has a maximum torque of 111.2 ft-lbs while the 114 engine has a maximum torque of 119 ft-lbs.
The greater torque in the 114 engine offers a greater power output for acceleration and overall performance. The maximum horsepower of the 107 engine is 77.2 while the maximum horsepower of the 114 engine is 82.
The Milwaukee Eight 107 and 114 engines also perform differently in terms of fuel efficiency. The 107 engine is more fuel efficient with an estimated EPA fuel economy rating of 45 mpg.
On the other hand, the 114 engine is less efficient with an estimated EPA fuel economy rating of 40 mpg.
Which Engine Variant is Best Suited for You?
The Milwaukee Eight 107 and 114 engines vary in terms of performance so determining which one is best suited for you depends on your riding style.
The 107 engine is better suited for general riding and touring. It offers good performance with decent power output, making it better suited for less aggressive riding with occasional long hauls. Moreover, its fuel efficiency makes it ideal for riding long distances.
The 114 engine is better if you’re looking for more power and performance. Its higher torque and horsepower output makes it better suited for aggressive riding and long trips. However, its lower fuel efficiency should be kept in mind when planning a long ride.
Conclusion
The Milwaukee Eight 107 and the Milwaukee Eight 114 are two popular engine variants of the Harley-Davidson engine.
Each engine offers different levels of performance and power output. The 107 engine offers a good power output while also being fuel efficient, making it better suited for general riding and touring.
On the other hand, the 114 engine offers more power and torque and is better suited for aggressive riding and long hauls. Ultimately, choosing which engine is best suited for you depends on your riding style.
