1. Pistons, Rings & Piston Kits Products
  2. sku: 5325755320217653
  3. KB PERFORMANCE KB258-10

KB PERFORMANCE KB258-10 Hypereutectic Piston Kit Flattop 80CI. .010 3.508

fits year: 2010.

Kb258 Kb Performance 10 Hypereutectic Piston Kit 80ci. Flattop .010 Inch To 3.508

( Brand: Kb Performance ), ( Manufacturer Part Number: KB258-10 ), ( Part Type: Piston ), ( Disclaimer: Images Are A Representation Of The Item Only. Stock Photos. ), ( Manufacturer Warranty: Other ), ( Size: 80ci., Flat Top .010in. Oversize To 3.508in. )

Review KB PERFORMANCE Hypereutectic Piston Kit 80ci. Flattop .010 Inch To 3.508 fits 2010

The KB Performance KB258 10 hypereutectic piston kit is an ideal upgrade for 80ci flattop engines, particularly those seeking improved performance and durability. This piston kit, with part number 010 and a bore size of 3.508 inches, consists of ten high-quality hypereutectic pistons.

Hypereutectic pistons are recognized for their enhanced strength and heat resistance, making them perfect for high-performance applications. This piston kit from KB Performance is no exception. Each piston is meticulously crafted using advanced manufacturing techniques to ensure precise dimensions, excellent strength, and consistent weight.

The piston crowns are designed with a dished shape to optimize combustion efficiency and power output. The piston skirts feature a full-length, split ring design that enhances ring sealing and reduces friction between the piston and cylinder wall. The piston pins are made of robust material, ensuring they can withstand the increased loads and pressures of high-performance engines.

The piston tops are finished with a hard-anodized coating that resists scuffing and provides excellent heat dissipation. This coating also makes the pistons easier to install and maintain. Additionally, the pistons are supplied with new piston rings, ensuring a perfect seal and minimizing the need for additional purchases.

This KB Performance piston kit is a must-have for engine builders and enthusiasts seeking to enhance the power and reliability of their 80ci flattop engines. With its high-quality hypereutectic pistons, meticulous manufacturing, and comprehensive kit, this piston kit is a smart investment for those who demand the best from their engines.

The KB Performance KB258 10 hypereutectic piston kit is designed for use in 80ci flattop engines with a stroke length of 3.508 inches. Here are some potential pros and cons that may help you make a decision about purchasing this piston kit.

Pros:

1. High-performance design: Hypereutectic pistons are known for their high compressional strength and heat resistance, making them an ideal choice for high-performance applications.

2. Improved engine power: Upgrading to high-performance pistons can help increase engine power and torque, resulting in improved acceleration and overall performance.

3. Durability: Hypereutectic pistons are generally more durable than standard pistons due to their high-strength design and materials.

4. Precision machining: KB Performance pistons are precision machined to ensure a perfect fit and optimal engine performance.

Cons:

1. Cost: High-performance piston kits like the KB258 can be more expensive than standard piston kits, which may be a consideration for some buyers.

2. Installation complexity: Installing aftermarket pistons can be a complex process that requires specialized tools and expertise. It's important to ensure that the installation is done correctly to avoid any potential issues.

3. Potential for engine damage: Installing aftermarket pistons can carry some risk of engine damage if not done correctly. This can include issues like piston-to-wall clearance, ring gap size, and cylinder bore finish.

Conclusion:

The KB Performance KB258 10 hypereutectic piston kit offers several benefits for high-performance engine applications, including increased power, improved durability, and precision machining. However, it also comes with some potential drawbacks, such as cost, installation complexity, and the risk of engine damage if not installed correctly. Ultimately, the decision to purchase this piston kit will depend on your specific needs, budget, and technical expertise.

Recommendation:

If you're looking to upgrade your engine with high-performance pistons and have the necessary expertise and resources to install them correctly, then the KB Performance KB258 10 hypereutectic piston kit could be a good choice for you. However, if you're new to engine building or have limited resources, it may be worth considering other options, such as purchasing a complete performance engine or consulting with a professional engine builder for guidance.

Details:

No knock offs or fakes here. KB Performance Hypereutectic Piston Kit. Actual item may differ. KB pistons can be installed tighter than other.

This results in less piston rock and better ring seal. Replacement piston rings sold separately. Diamond-machined pistons are held to plus or minus one gram weight and less than one-half-thousandth-inch .0005 tolerances from piston. Model: Hypereutectic Piston Kit.

Each kit contains two pistons, pins, spiral-lock pin clips and Hastings Molly rings. Due to the thermal conductivity and design of KB pistons, special attention is required top ring end gap. Some images will show accessories or parts that are NOT included with this listing. Manufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloy.

Allows a tighter fit and longer piston ring life.

part #: kb25810 prices

  • $161.19-$222.43

specifications pistondon:

  • for years: 2010
  • brand: Kb Performance
  • mpn: Kb258-10
  • part type: Piston
  • disclaimer: Images Are A Representation Of The Item Only. Stock Photos.
  • manufacturer warranty: Other
  • size: 80ci., Flat Top .010in. Oversize To 3.508in.

shipping pistondon:

  • service: Economy, USPS Priority Mail, USPS Priority Mail Express
  • class: Economy, Expedited
  • cost: $0.00
  • transit: 3-8 Days
  • type: Fixed
  • carrier: USPS

returns pistondon:

  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Buyer

offer pistondon:

  • quantity: 5
  • started: March 26, 2025
  • options: Ship-to-home
  • availability: In Stock
  • sold: 0

seller pistondon:

  • # reviews: 118216
  • city: Hudsonville, Michigan
  • rating: 99.5%

general pistondon:

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

payments pistondon:

  • credit card: Diners-club
  • other
  • wallet: Apple-pay
for years: 2010, part type: piston, disclaimer: images are a representation of the item only. stock photos., manufacturer warranty: other, size: 80ci., flat top .010in. oversize to 3.508in.,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > pistons, rings piston kits, sku: 5325755320217653,

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