fits model: Shovelhead. make: Harley.

( Brand: Harley Davidson ), ( Manufacturer Part Number: 1-78 ), ( Part Type: Cylinder Head ), ( Placement On Vehicle: Front )
Introducing the Harley-Davidson Shovelhead Cylinder Heads, a classic and essential upgrade for any Harley-Davidson Shovelhead engine from 1970 to 1978. These cylinder heads, manufactured by Davidson, are engineered to provide superior performance and reliability, making them an excellent choice for any Harley-Davidson enthusiast.
The Davidson Shovelhead Cylinder Heads feature a cast iron construction, ensuring durability and heat resistance. The heads are designed with a 4-valve per cylinder configuration, which increases airflow and fuel mixture into the cylinders, resulting in improved combustion and power output. The 4-valve design also allows for a more efficient exhaust gas exiting the cylinders, reducing backpressure and further enhancing performance.
One of the standout features of these cylinder heads is the oversized valves. The intake valves are 1.94 inches, and the exhaust valves are 1.60 inches, providing ample room for air and fuel to flow in and out of the cylinders. This leads to improved engine breathing, resulting in increased horsepower and torque.
The Davidson Shovelhead Cylinder Heads also have a high-flow port design, which helps to improve airflow and fuel mixture distribution within the cylinders. This design allows for a more efficient combustion process, resulting in improved engine performance and fuel efficiency.
The cylinder heads also include high-quality, hardened steel valve seats, which are designed to provide a long-lasting seal between the valves and cylinder heads. This ensures that the heads are able to withstand the high temperatures and pressures produced by the engine, resulting in a more reliable and durable performance.
Overall, the Harley-Davidson Shovelhead Cylinder Heads by Davidson are a must-have upgrade for any Harley-Davidson Shovelhead engine from 1970 to 1978. With their cast iron construction, 4-valve design, oversized valves, high-flow port design, and high-quality valve seats, these heads are designed to provide superior performance and reliability, making them an excellent choice for any Harley-Davidson enthusiast.
Pros of buying Harley-Davidson Shovelhead Cylinder Heads 1-78 (2-78) Davidson:1. Authenticity: These cylinder heads are original parts from Harley-Davidson's Shovelhead era, which adds to the bike's historical value and authenticity.
2. Quality: Harley-Davidson is known for its high-quality components, so buying these cylinder heads ensures you're getting a reliable and durable part.
3. Performance: The Shovelhead engine is a classic and powerful design, and upgrading to new cylinder heads could potentially improve engine performance and efficiency.
4. Availability: These parts are widely available, making it easier to find and purchase them.
Cons of buying Harley-Davidson Shovelhead Cylinder Heads 1-78 (2-78) Davidson:1. Cost: Original Harley-Davidson parts can be expensive, and these cylinder heads are no exception.
2. Compatibility: Make sure the cylinder heads are compatible with your specific bike model and year, as not all Shovelhead engines are the same.
3. Installation: Installing cylinder heads can be a complex and time-consuming process, which may require professional assistance.
4. Limited Improvement: While upgrading to new cylinder heads could potentially improve engine performance, it may not result in significant gains, especially if the rest of the engine is in good condition.
Conclusion:If you're looking to upgrade your Harley-Davidson's Shovelhead engine with new cylinder heads, the Harley-Davidson Shovelhead Cylinder Heads 1-78 (2-78) Davidson are a good option due to their high quality, availability, and historical value. However, the cost and complexity of installation should be considered. If you're on a tight budget or not confident in your mechanical skills, you may want to consider alternative options.
Recommendation:If you decide to purchase these cylinder heads, it's recommended to have them professionally installed to ensure proper fit and function. Additionally, it would be beneficial to research the specific benefits and improvements you can expect from upgrading to these cylinder heads to determine if the cost is justified.
No broken fins. One spark plug thread is helicopter. Front and rear standard not big bore cylinder heads.
See pictures,threads and seals look to be in very good condition. It looks like has been a recent rebuild.