1. Pistons, Rings & Piston Kits Products
  2. sku: 8645055729252633
  3. KB PERFORMANCE KB661C.010

KB PERFORMANCE KB661C.010 Forged Piston Cam

fits model: 110, Twin. make: Harley. year: 2010.

Kb661c.010 Kb Performance Forged Piston 110 10 1 .010 Inch Harley Twin Cam

( Brand: Kb Performance ), ( Manufacturer Part Number: KB661C.010 ), ( Part Type: Piston Cam )

Review KB PERFORMANCE Forged Piston .010 Inch Harley Cam fits TWIN 110 2010

Introducing the KB Performance KB661C.010 Forged Piston Kit, specifically designed for Harley-Davidson Twin Cam engines. This high-performance piston kit is engineered to deliver exceptional power, durability, and reliability, making it an ideal upgrade for riders seeking to enhance the performance of their Harley-Davidson motorcycle.

The KB661C.010 Forged Piston Kit features forged pistons, which are known for their superior strength and rigidity compared to cast pistons. Forged pistons are produced by heating and shaping a block of aluminum under extreme pressure. This manufacturing process results in pistons that are stronger, lighter, and more resilient to the extreme temperatures and pressures generated during engine operation.

This piston kit is designed to fit Harley-Davidson Twin Cam engines with the following specifications: 110 cubic inches, 10:1 compression ratio, and 010 connecting rods. The piston tops are finished with a polished, mirror-like surface that not only adds a touch of class to your engine but also reduces friction, resulting in improved power and efficiency.

Each piston is precision-machined to ensure perfect fitment and function. The piston skirts are designed with a full-floating pin design to minimize friction and wear, thereby reducing engine noise and improving power delivery. The piston rings are made of high-quality, heat-resistant materials to ensure optimal sealing and longevity.

The KB Performance KB661C.010 Forged Piston Kit is backed by a 1-year warranty against manufacturing defects, giving you peace of mind and confidence in your purchase. Installation of this kit requires the expertise of a professional mechanic, and KB Performance offers a range of installation services to help ensure that your new pistons are installed correctly and safely.

In summary, the KB Performance KB661C.010 Forged Piston Kit is a top-of-the-line upgrade for Harley-Davidson Twin Cam engines. With its forged pistons, precise machining, and high-quality materials, this kit delivers improved power, reliability, and durability. Whether you're a weekend warrior or a dedicated touring rider, the KB Performance KB661C.010 Forged Piston Kit is an investment that will help you get the most out of your Harley-Davidson motorcycle.

The KB Performance KB661C.010 forged piston kit is a popular upgrade for Harley-Davidson Twin Cam engines. Here are some pros and cons to help you decide if this is the right purchase for you:

Pros:

1. Increased Performance: Forged pistons are stronger and more durable than stock pistons. They can handle higher compression ratios and heat, resulting in increased power and torque.

2. Enhanced Durability: Forged pistons are made from a single piece of aluminum, making them less prone to cracking or failure. They are also more resistant to detonation and piston-to-liner contact.

3. Improved Engine Life: By upgrading to forged pistons, you can extend the life of your engine. Forged pistons can withstand the rigors of high-performance riding and racing, providing peace of mind for long-term use.

4. Better Thermal Conductivity: Forged pistons have better thermal conductivity, which helps to dissipate heat more efficiently. This can reduce the risk of engine overheating and improve overall engine performance.

5. Customizable: KB Performance offers a variety of forged piston options to suit different engine applications and performance goals. You can choose from different compressions ratios and skirt designs to meet your specific needs.

Cons:

1. Cost: Forged pistons are more expensive than stock pistons. The cost of the KB Performance KB661C.010 kit can be a significant investment for some Harley-Davidson owners.

2. Installation: Installing forged pistons requires specialized knowledge and tools. It is recommended that you have the kit installed by a professional mechanic to ensure proper installation and ensure that the engine is tuned correctly to maximize performance.

3. Potential Compatibility Issues: It is essential to ensure that the forged pistons are compatible with your specific engine application. The KB Performance KB661C.010 kit is designed for specific Harley-Davidson Twin Cam engines, but it is crucial to double-check that it is the right fit for your bike before making the purchase.

4. Increased Maintenance: Forged pistons require more frequent maintenance than stock pistons due to their higher performance capabilities. This includes more frequent oil changes, inspections, and possibly even head gasket replacements.

Conclusion:

The KB Performance KB661C.010 forged piston kit offers significant performance benefits for Harley-Davidson Twin Cam engines. These benefits include increased power, torque, and durability, as well as improved engine life and thermal conductivity. However, the investment required for the kit, the need for professional installation, potential compatibility issues, and increased maintenance should be carefully considered before making the purchase. Ultimately, if you are looking for a high-performance upgrade for your Harley-Davidson Twin Cam engine, forged pistons from KB Performance could be an excellent choice.

Recommendation:

If you are seriously considering upgrading to forged pistons for your Harley-Davidson Twin Cam engine, we recommend doing thorough research to ensure that the KB Performance KB661C.010 kit is the right fit for your specific engine application. We also strongly advise having the kit installed by a professional mechanic to ensure proper installation and maximize performance. Finally, be prepared for the increased cost, maintenance requirements, and potential compatibility issues that come with forged pistons. If you are willing to make the investment and accept the responsibilities that come with it, then the KB Performance KB661C.010 forged piston kit could be an excellent upgrade for your Harley-Davidson Twin Cam engine.

Details:

Forged Pistons. Offset pin design for quiet operation. KB Forged Piston 110 10:1 .010 KB661C.010 Harley Twin Cam: Pistons forged from 4032 aluminum alloy. Larger than Stock Stroke 4.375 in.

Each kit contains two pistons, pins, spiral-lock pin clips and Hastings Molly rings. NOTE: requires Screaming' Eagle 95cc heads to complete installation sold separately.

part #: kb661c010 price

  • $349.43

specifications pistondon:

  • for models: 110, Twin
  • for makes: Harley
  • for years: 2010
  • brand: Kb Performance
  • mpn: Kb661c.010
  • part type: Piston Cam

seller pistondon:

  • rating: 99.5%
  • city: Grand Rapids, Michigan
  • # reviews: 645269

payments pistondon:

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general pistondon:

  • condition: New
  • Motorcycle Scooter Parts Accessories > Engines Engine Parts > Pistons, Rings Piston Kits

offer pistondon:

  • options: Ship-to-home
  • started: October 25, 2025
  • availability: In Stock
  • quantity: 4
  • sold: 0

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  • time: 30 Days
  • policy: Returns Accepted

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  • carrier: UPS
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  • cost: $0.00
  • service: UPS Ground
for models: 110, twin, for makes: harley, for years: 2010, part type: piston cam,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > pistons, rings piston kits, sku: 8645055729252633,

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