What is the History of the Harley Evolution V-Twin Engine

History Before the Evolution

Harley started his journey in 1903. Firstly, he made a small engine. Moreover, this engine is called a Single-Cylinder F-head engine. Also, it has a one-cylinder engine. Therefore, it was small and light. Then, in 1909, he made the first V-Twin engine. Additionally, it had two cylinders arranged in a V shape.

In fact, this engine was more powerful and produced more sound. So, this V-twin engine became the heart of Harley. Moreover, he made new models. For example, they were flathead, knucklehead, panhead, and shovelhead.

Unluckily, they all had problems. For example, oil leakage, heat, and a lot of smoke. So, these may cause trouble. In 1970, Japanese bikes came. Also, they were clean and smoother. Therefore, they worked better. Hence, Harley needed a new engine to survive. So, this new engine was called the "Evolution."

Birth of the Evolution Engine

As you have learned about the history and evolution of the V-Twin engine. Now, you will learn about the birth of the evolution engine.

In 1970, Harley was in trouble. Moreover, the shovel head engine leaks oil. Also, it overheated quickly. Additionally, it emitted a lot of smoke. On the other hand, Japanese bikes were working well. So, Harley decided to make a new engine.

Therefore, in 1980, he started working hard on a more reliable engine. Also, focusing on durability and cleaner performance. Moreover, the company focused on quality. Hence, they designed a new engine. However, this engine was very strong. Besides that, it works for a long time. Also, it was clean.

After that, in 1984, a new engine came out. Moreover, it was called the Evolution engine. Amazingly, drivers loved it and named it Evo. Also, it was made up of aluminum. Therefore, this keeps the engine cool and makes it lighter. Furthermore, it has no fuel leakage. Additionally, it was more powerful.

Technical Features of the Evolution

As you have learned about the birth of the evolution engine. Now you will learn about some technical features of evolution.

• V-Twin Design: Firstly, it has two cylinders arranged in a V shape. Therefore, it is a more reliable and durable engine. Thus, it gives cleaner performance.

• Different Sizes: Next, these are available in different sizes. For example, the big Twin 1340cc and the Sportster 883–1200cc. Therefore, each size is durable and has cleaner performance. Hence, it is best for long trips.

• Aluminum Heads and Cylinders: Then, the cylinder and head of this engine are made of aluminum. Therefore, this engine remains light and cool. As a result, it has more reliable and durable performance.

• Improved Oil System: Additionally, this engine uses less oil. Therefore, this engine stays clean. Thus, it is eco-friendly and helps you save money. Also, it has smooth and reliable performance.

• Pushrod valve design: Furthermore, pushroad engine runs smoothly even at high speeds. Moreover, it makes the engine more responsive. Hence, it gives more reliable and stronger performance.

• Electronic from carburetor: Beside that, electronic ignition and fuel injection help the engine to start easily. Therefore, the engine works smoothly and efficiently. As a result, it is clean and reliable.

• Reliable engine: Rather than all, it is best and strong for long journeys. Moreover, it has classic Harley sound. Thus, the engine is long-lasting and clean.

• Used in various models: Finally, it is used in Softail, Dyna, and Sportster. Moreover, this engine works with a modern look. As a result, it is reliable, long-lasting and clean.

Now you will learn a quick table for the Technical Features of Evolution.

Evolution Through the Years

As you have learned about some technical features of evolution. Now, you will learn about evolution throughout the year.

Evolution started working in 1984. Moreover, it was strong and reliable in the beginning. Therefore, it was seen in Big Twin bikes. For example, Softail and Dyna. Hence, riders loved it so much. Then, in 1986 the Evo was introduced to the Sportster models.

Also, it came in smaller sizes. For example, 883cc and 1100cc. So, it helps the riders to choose the engine of their choice. Additionally, in the 1980s and 1990s Harley made small improvements. Moreover, the ignition system was improved.

Furthermore, emissions were lowered and oil leaks were eliminated. So, these changes made the engine smoother and cleaner. Hence, this engine remained on the Big Twin bikes until 1999. After that, the Harley Twin Cam engine came. But the Evo stayed on the Sportsters for many years.

In short, this engine was simple, reliable, and gave off that classic Harley sound. Therefore, it was popular. As a result, this engine can last for decades.

Evo vs Other Harley Engines

As you have learned about evolution throughout the year. Now, you will learn the difference between Evo and other Harley engines.

Harley had different engines before the Evo. For example, like the Shovelhead, Panhead, and Knucklehead. Although these engines were powerful. Unfortunately, they also had some problems. For example, oil leakage, overheating, and emitted a lot of smoke. So, riders have to face many problems.

On the other hand, the Evolution engine was totally different. Moreover, it was more reliable. Also, it remains cool and uses less oil. Additionally, the engine was easier to maintain. Hence, the riders can enjoy long journeys easily.

Beside that, the Evo was simpler than the Twin Cam. Moreover, the Twin Cam was more powerful but more complex. Additionally, the Evo has the classic Harley sound. As a result, it was smooth, powerful, and easy to ride.

Today, you can even explore this engineering legacy by building your own mini Harley engine kit.

Now, you will see a quick comparison table for Evo vs Other Harley Engines.

Conclusion

In short, the Evolution engine is very strong and reliable. Moreover, it runs very smoothly and stays cool. Therefore, riders can enjoy longer trips with less fuel consumption. Additionally, it is very easy to maintain. However, the classic Harley sound is still great.

Furthermore, you can buy it at a lower price. So, keep visiting our EngineDIY website if you have not tried our engine model. Then, don't wait, go and place your order now.