1. Pistons, Rings & Piston Kits Products
  2. sku: 7166813865938622
  3. KB PERFORMANCE KB258.005

KB PERFORMANCE KB258.005 Top Cast Piston Kit Flat 800745060341 80CI.

Kb258.005 Kb Performance Cast Piston Kit 80ci. Flat Top - .005 Inch Oversize

( Brand: Kb Performance ), ( Manufacturer Part Number: KB258.005 ), ( Type: Engine ), ( Country/region Of Manufacture: Mexico ), ( Manufacturer Warranty: 1 Year Manufacturer Warranty ), ( California Prop 65 Warning: Cancer And Reproductive Harm Www.p65warnings.ca.gov ), ( Authorized Dealer: Yes ), ( Compatibility Disclaimer: Compatibility Chart Information Provided By ), ( Legal Disclaimer: Your Local Laws Before Purchasing ), ( Photo Disclaimer: For Reference Only, See Item Details ), ( Vehicletype: American Vtwin ), ( UPC: 800745060341 )

Review KB PERFORMANCE Cast Piston Kit 80ci. Flat Top .005 Inch Oversize

The KB Performance KB258.005 Cast Piston Kit is a high-performance upgrade designed for flat top 80ci engines. This piston kit is engineered to deliver superior strength, durability, and enhanced power output for demanding racing applications.

Each piston in this kit is meticulously cast from premium alloy material to ensure exceptional strength and rigidity. The piston crown is designed with a flat top profile, making it ideal for engines running high compression ratios or with aggressive camshafts. The skirt of the piston is optimized for a snug fit in the cylinder bore, reducing friction and ensuring efficient power transfer.

The KB258.005 Cast Piston Kit includes pistons, piston rings, and wrist pins. The piston rings are precision machined to ensure a perfect seal between the piston and cylinder wall, while the wrist pins are made from heavy-duty material to handle the increased stresses of high-performance applications.

Additionally, this piston kit comes with forged, chrome molybdenum connecting rods. These rods provide superior strength and durability, allowing the engine to handle the increased cylinder pressures produced by the high-performance pistons.

The KB Performance KB258.005 Cast Piston Kit is the perfect upgrade for enthusiasts looking to maximize the potential of their flat top 80ci engine. With its superior strength, durability, and enhanced power output, this piston kit is sure to provide impressive results, whether you're racing on the track or pushing your engine to the limit on the street.

Buying the KB Performance KB258.005 cast piston kit for a 80ci flat top engine comes with several pros and cons that you should consider before making a decision.

Pros:

1. Enhanced Performance: The cast pistons are designed to provide better performance by reducing weight and increasing strength compared to stock pistons. This results in increased horsepower and torque.

2. Durability: Cast pistons are known for their durability and ability to handle high horsepower and high RPMs. They are less prone to cracking and failure than forged pistons, making them a good choice for high-performance applications.

3. Improved Compression: The pistons in this kit offer improved compression ratios, which can lead to better fuel efficiency and more power.

Cons:

1. Cost: The KB Performance cast piston kit is more expensive than stock pistons or even some aftermarket forged pistons. This may be a limiting factor for some buyers.

2. Installation: Installing the cast pistons requires a certain level of expertise and experience. It is recommended that the installation is done by a professional to ensure proper fitment and functioning.

3. Clearance Issues: Depending on the specific engine and application, there may be clearance issues between the piston and other engine components. This may require additional modifications or custom work.

In conclusion, the KB Performance KB258.005 cast piston kit offers several benefits including improved performance, durability, and compression. However, it also comes with some drawbacks such as cost, installation complexity, and potential clearance issues. Ultimately, whether or not this kit is a good investment depends on your specific application, budget, and level of expertise. If you have the resources and are looking for a high-performance upgrade, this kit could be a good choice. However, if you are on a tight budget or are not comfortable with the installation process, you may want to consider other options.

Details:

High-quality premium Performance pistons are a special hyper eutectic T5 aluminum alloy. This alloy makes it possible to build a lightweight piston that more power, runs great, uses less fuel and lasts longer than other pistons. Use lock rings MFG #RRN-81 pkg. Instructions included.

Kit includes 2 cast pistons, 1 set of Hastings Molly rings and piston pin clips.

part #: kb258005 price

  • $212.06

specifications pistondon:

  • brand: Kb Performance
  • mpn: Kb258.005
  • type: Engine
  • country/region of manufacture: Mexico
  • manufacturer warranty: 1 Year Manufacturer Warranty
  • california prop 65 warning: Cancer And Reproductive Harm Www.p65warnings.ca.gov
  • authorized dealer: Yes
  • compatibility disclaimer: Compatibility Chart Information Provided By
  • legal disclaimer: Your Local Laws Before Purchasing
  • photo disclaimer: For Reference Only, See Item Details
  • vehicletype: American Vtwin
  • upc: 800745060341

offer pistondon:

  • started: June 28, 2025
  • sold: 0
  • options: Ship-to-home
  • quantity: 6
  • availability: In Stock

seller pistondon:

  • rating: 97.9%
  • city: Cedar Park, Texas
  • # reviews: 176237

general pistondon:

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

shipping pistondon:

  • class: Expedited, Standard
  • type: Fixed
  • transit: 4-9 Days
  • cost: $0.00
  • service: Expedited, Standard

payments pistondon:

  • wallet: Google-pay
  • credit card: Diners-club
  • other

returns pistondon:

  • policy: Returns Accepted
  • time: 30 Days
  • paid by: Buyer
type: engine, country/region of manufacture: mexico, manufacturer warranty: 1 year manufacturer warranty, california prop 65 warning: cancer and reproductive harm www.p65warnings.ca.gov, authorized dealer: yes, compatibility disclaimer: compatibility chart information provided by, legal disclaimer: your local laws before purchasing, photo disclaimer: for reference only, see item details, vehicletype: american vtwin,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > pistons, rings piston kits, sku: 7166813865938622,

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1 offer $212.06 USD
  • Offer #1: $212.06 price + $0.00 shipping estimate = $212.06* total. Quantity:Sold As Set (2/pkg) Bore:3.503 in.FREE SHIPPING

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