1. Motorcycle Cylinder Heads & Valve Covers For Sale
  2. sku: 10602843252435622
  3. HARLEY DAVIDSON 16721-8

HARLEY-DAVIDSON 16721-8 Front Performance Dual Plug Bathtub Big Cylinder Head

fits model: Evo, Twin. make: Harley.

16721-8 Harley-davidson Performance Dual Plug Bathtub Evo Big Twin Front Cylinder Head

( Brand: Harley-davidson ), ( Manufacturer Part Number: 16721-8 ), ( Engine Type: 4-stroke ), ( Type: Cylinder Head ), ( Machine Type: Street Motorcycle ), ( Country/region Of Manufacture: United States )

Review HARLEY DAVIDSON Performance Dual Plug Bathtub Big Front Cylinder Head fits EVO TWIN

The Harley-Davidson 16721-8 Performance Dual Plug Cylinder Head is a premium aftermarket upgrade for the front cylinder head of your Harley-Davidson Evo Big Twin engine. Designed to deliver improved performance and enhanced engine aesthetics, this high-performance cylinder head is an excellent choice for riders seeking to unlock more power and torque from their motorcycle.

The dual plug design of this cylinder head is one of its most notable features. This unique configuration allows for two spark plugs to be used per cylinder, ensuring consistent and efficient combustion for optimal engine performance. Each plug is independently fired, allowing for more complete combustion that can result in increased horsepower and torque.

Constructed from high-quality aluminum, this Harley-Davidson cylinder head is designed to be durable and lightweight, helping to reduce the overall weight of your motorcycle for better handling and acceleration. The finned design provides effective cooling, helping to prevent engine overheating during long rides or high-performance riding.

This cylinder head is also equipped with new larger valves, which allow for improved air and fuel intake and exhaust flow. These larger valves work in conjunction with the dual plug system to produce more power and torque, enhancing your riding experience. Additionally, this cylinder head includes new valve guides and seats to ensure precise valve alignment and sealing, reducing the likelihood of exhaust leaks and enhancing overall engine performance.

The finish of this cylinder head adds a touch of style and sophistication to your motorcycle. The polished aluminum surface serves as a bold contrast to the black engine components, creating a striking visual appearance that is sure to turn heads on the road.

The Harley-Davidson 16721-8 Performance Dual Plug Cylinder Head is a comprehensive upgrade for Big Twin Evo engines, delivering both functional and aesthetic benefits. It comes complete with everything needed for installation, including new valves, valve springs, valve keepers, and pushrods. Simply remove the stock cylinder head and replace it with this upgraded version for improved power, torque, and engine aesthetics.

Experience the difference that comes from a premium aftermarket upgrade with the Harley-Davidson 16721-8 Performance Dual Plug Cylinder Head. Upgrade now and take your Harley-Davidson motorcycle to the next level.

Pros and Cons of Buying Harley-Davidson 16721-8 Performance Dual Plug Bathtub Evo Big Twin Front Cylinder Head

Introduction:

The Harley-Davidson 16721-8 Performance Dual Plug Bathtub Evo Big Twin Front Cylinder Head is a performance upgrade designed for Harley-Davidson motorcycles with Evo engines. This cylinder head offers improved power and torque, making it an attractive option for riders looking to enhance their bike's performance. However, like any aftermarket motorcycle part, it comes with its advantages and disadvantages. In this article, we will explore the pros and cons of buying this cylinder head.

Pros:

1. Enhanced Power and Torque: The Harley-Davidson 16721-8 Performance Dual Plug Bathtub Evo Big Twin Front Cylinder Head is designed to increase power and torque, making your bike more responsive and providing smoother acceleration.

2. Improved Combustion Efficiency: The dual plug design improves combustion efficiency by ensuring a more even air/fuel mixture and better ignition, leading to better fuel economy and reduced emissions.

3. Increased Performance: With these increased power and torque, you can expect improved overall performance, enabling you to ride faster and more efficiently.

4. Higher Compression Ratio: The cylinder head comes with an increased compression ratio, which not only enhances power but also improves efficiency and reduces exhaust emission levels.

Cons:

1. Cost: Upgrading to the Harley-Davidson 16721-8 Performance Dual Plug Bathtub Evo Big Twin Front Cylinder Head can be expensive, requiring a significant investment if you're looking to buy a fully renovated cylinder head or have it installed by a professional.

2. Installation Complexity: Installing this cylinder head is a complex process that requires extensive technical knowledge, specialized tools, and significant time investment.

3. Fitting Challenges: The cylinder head may require modifications to fit correctly, depending on your specific bike model and year, which may add to the cost and complexity of the installation.

4. Potential Performance Variability: While the cylinder head offers improved performance, individual results may vary depending on factors like the condition of your existing engine and correct installation.

Conclusion:

The Harley-Davidson 16721-8 Performance Dual Plug Bathtub Evo Big Twin Front Cylinder Head is an attractive option for riders looking to enhance their motorcycle's power and torque while improving combustion efficiency and overall performance. However, the cost, complexity of installation, and potential fitting challenges make it a significant investment, and it may not be the ideal choice for casual riders or those with limited mechanical experience. Consider your budget, technical expertise, and the expected benefits carefully before deciding to upgrade your bike with this performance cylinder head.

Recommendation:

If you're a serious Harley-Davidson enthusiast and you're committed to enhancing your bike's performance, the Harley-Davidson 16721-8 Performance Dual Plug Bathtub Evo Big Twin Front Cylinder Head is a considerable investment that could potentially provide a significant payoff. However, if you're a casual rider or new to working on motorcycles, you might consider other, less complicated performance upgrades or seek professional guidance before taking on a project as complex as installing a new cylinder head. Either way, always ensure that the aftermarket part is compatible with your specific make, model, and year of motorcycle, and consider any potential warranty implications before making your purchase.

Details:

We just ask that you do your research prior to purchasing ensure proper fitment. I don't know a whole about the head. Please closely examine the photos to determine condition of item. Listed as a Harley-Davidson Performance Dual Plug Bathtub EVO Big Twin Front Cylinder Head.

Take a good look at the photos to determine exact condition of item.

part #: 167218 price

  • $680.00

specifications cylindermotorcycleiz:

  • for models: Evo, Twin
  • for makes: Harley
  • brand: Harley-davidson
  • mpn: 16721-8
  • engine type: 4-stroke
  • type: Cylinder Head
  • machine type: Street Motorcycle
  • country/region of manufacture: United States

shipping cylindermotorcycleiz:

  • cost: $8.07
  • transit: 5-8 Days
  • type: Calculated
  • service: USPS Ground Advantage, USPS Priority Mail, FedEx Ground or FedEx Home Delivery
  • class: Standard, Expedited
  • carrier: USPS, FedEx

returns cylindermotorcycleiz:

  • policy: No Returns

general cylindermotorcycleiz:

  • Motorcycle Scooter Parts Accessories > Engines Engine Parts > Cylinder Heads
  • condition: Used

offer cylindermotorcycleiz:

  • availability: In Stock
  • quantity: 1
  • started: January 9, 2025
  • options: Ship-to-home
  • sold: 0

seller cylindermotorcycleiz:

  • city: Cedar Falls, Iowa
  • # reviews: 2472
  • rating: 99.3%

payments cylindermotorcycleiz:

  • wallet: Paypal
  • credit card: Discover
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for models: evo, twin, for makes: harley, engine type: 4-stroke, type: cylinder head, machine type: street motorcycle, country/region of manufacture: united states,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > cylinder heads, sku: 10602843252435622,
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1 offer $680.00 USD
  • Used. Offer #1 priced at $680.00 + $9.04 shipping estimate = $689.04* total. I don't know a whole about the head.+$9.04 shipping

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