fits model: Shovelhead. make: Harley. year: 1966-77–1974.

( Brand: Harley-davidson ), ( Part Type: Cylinder Head ), ( Placement On Vehicle: Front )
The 1966-77 Harley-Davidson Shovelhead Front 74 Cylinder Head, specifically the 6645A model, is a prized possession for any Harley-Davidson enthusiast. This cylinder head is a key component of the iconic Shovelhead engine, which was renowned for its powerful and distinctive sound.
The 6645A cylinder head is characterized by its robust construction, designed to withstand the high-performance demands of the Shovelhead engine. It features a unique combustion chamber design, which aids in the efficient combustion of fuel, resulting in increased power and torque. The cylinder head is also equipped with large valves, which contribute to improved airflow and better engine breathing.
One of the standout features of this cylinder head is its distinctive "shovel" shape, hence the name "Shovelhead" engine. This shape is a result of the design of the camshaft and lifter assembly, which is housed in a separate cover at the front of the cylinder head. This design is not only visually striking but also contributes to the engine's unique sound and performance.
The 6645A cylinder head is also known for its durability. It is made from high-quality materials, such as cast iron and steel, which are designed to withstand the heat and stress generated by the engine. This durability is one of the reasons why the Shovelhead engine is still loved and respected by motorcyclists today.
In conclusion, the 1966-77 Harley-Davidson Shovelhead Front 74 Cylinder Head 6645A is a testament to Harley-Davidson's commitment to engineering excellence and performance. It is a vital component of the Shovelhead engine, which was a pioneer in its time and continues to be a favorite among Harley-Davidson enthusiasts.
Pros of buying a 1966-77 Harley-Davidson Shovelhead with a 6645A cylinder head:1. Classic Appeal: The Shovelhead is an iconic model in Harley-Davidson's history, known for its distinctive look and powerful engine.
2. Reliability: These bikes have a reputation for being durable and long-lasting, especially if they have been well-maintained.
3. Affordability: Compared to newer models, older Harley-Davidsons can be more affordable, especially if you're looking for a custom project bike.
4. Parts Availability: Since the Shovelhead is a popular model, many aftermarket parts are available, making it easier to maintain and customize.
Cons of buying a 1966-77 Harley-Davidson Shovelhead with a 6645A cylinder head:1. Mechanical Complexity: Older bikes can be more complex to maintain and repair, especially if you're not mechanically inclined.
2. Electrical Issues: The electrical systems on older bikes can be problematic, and replacing parts can be challenging.
3. Comfort: Older bikes often lack modern comfort features, such as windshields, heated grips, and adjustable seats.
4. Safety: Older bikes may not have the same safety features as newer models, such as ABS brakes and traction control.
Ending Conclusion:If you're a classic bike enthusiast who enjoys working on projects and appreciates the history and character of Harley-Davidsons, a 1966-77 Shovelhead with a 6645A cylinder head could be a great fit for you. However, if you're looking for a bike that is easy to maintain and has modern safety features, you may want to consider a newer model.
Recommendation:Before making a purchase, do your research and consider the condition of the bike, as well as your own mechanical skills and budget. It's also a good idea to have the bike inspected by a qualified mechanic to ensure that it's in good working order. With the right care and maintenance, a 1966-77 Harley-Davidson Shovelhead with a 6645A cylinder head can be a reliable and enjoyable ride.
No cracks or repairs. New valves, guides and seats.
One tall rocker cover stud missing. O-ring intake port has a small chip in it. Exhaust port in good condition.