fits model: Screamin, Eagle. make: Eagle, Harley.

( Brand: Harley-davidson ), ( Manufacturer Part Number: 22156-99 ), ( Part Type: Piston ), ( Surface Finish: Machined Forged Aluminum ), ( Placement On Vehicle: Front Rear )
The Harley-Davidson Screamin' Eagle High-Compression Pistons, specifically the part numbers 22766-98 and 22156-99, are high-performance components designed for Harley-Davidson V-Twin engines. These pistons are manufactured with precision and care to ensure optimal performance, reliability, and longevity.
The 22766-98 and 22156-99 are part of Harley-Davidson's Screamin' Eagle high-compression piston series, which is designed to increase the power output of your engine. These pistons feature a higher compression ratio compared to standard pistons, allowing for a more efficient combustion process and ultimately, more power.
The pistons are made from forged aluminum alloy, which is a strong and lightweight material that is resistant to heat and fatigue. This material is ideal for high-performance applications as it can withstand the intense heat and pressure generated by the engine.
The piston skirts are designed with a unique shape that provides a smooth and efficient transfer of power from the piston rings to the crankshaft. This design helps to reduce friction and increase efficiency, resulting in improved performance and fuel economy.
The pistons also feature a high-tension ring pack, which includes a compression ring, two oil control rings, and a top ring. These rings are designed to provide optimal sealing and lubrication, which is crucial for the proper functioning of the engine.
In addition, the pistons have a fully floating wrist pin with a dual-lobe pin boss, which allows for greater flexibility and reduced wear during operation. This design helps to reduce friction and noise, resulting in a smoother and quieter engine.
Overall, the Harley-Davidson Screamin' Eagle High-Compression Pistons are a high-quality and high-performance component that can help increase the power output of your Harley-Davidson V-Twin engine. They are made from strong and lightweight materials, feature a unique skirt design for improved efficiency, and include a high-tension ring pack for optimal sealing and lubrication. If you're looking to get the most out of your Harley-Davidson engine, these pistons are a great upgrade option.
Pros of buying Harley-Davidson Screamin' Eagle Pistons:1. High-quality materials: These pistons are made from high-strength forged aluminum alloy, ensuring durability and longevity.
2. Enhanced performance: By replacing the stock pistons with these high-compression pistons, you can expect improved engine performance, including increased horsepower and torque.
3. Precision engineered: The pistons are designed to fit perfectly in your Harley-Davidson engine, ensuring a smooth and efficient operation.
4. Backed by Harley-Davidson: As an official Harley-Davidson product, you can trust that these pistons meet the company's high standards for quality and performance.
Cons of buying Harley-Davidson Screamin' Eagle Pistons:1. Cost: High-performance pistons like these can be expensive, and the cost may be prohibitive for some riders.
2. Installation complexity: Replacing pistons in a Harley-Davidson engine can be a complex process, requiring specialized tools and knowledge.
3. Potential for engine damage: If not installed correctly, high-compression pistons can cause engine damage. It's important to follow the manufacturer's instructions carefully and have the work done by a qualified mechanic.
Conclusion:If you're looking for improved engine performance and are willing to invest in high-quality components, the Harley-Davidson Screamin' Eagle Pistons 22766-98 and 22156-99 are a good option. However, it's important to weigh the cost against the potential benefits and consider the complexity of the installation process. If you're not comfortable doing the work yourself, it may be worth hiring a qualified mechanic to ensure the job is done correctly.
Recommendation:If you decide to purchase these pistons, make sure to follow the manufacturer's instructions carefully and have the work done by a qualified mechanic to ensure the best possible results. Additionally, consider investing in a high-quality cylinder head kit to further enhance your engine's performance.
NEW Harley-Davidson Screamin Eagle Forged aluminum Hi-Compression Pistons 22766-98 .005 oversize, 3 1/2 bore size plus. The Harley-davidson 22156-99 is in new condition.