WISECO K1123 Top End Kit Compression 72.00MM 10.25

( Brand: Wiseco ), ( Manufacturer Part Number: K1123 ), ( Part Type: Compression ), ( Make: Honda )

Review WISECO Top End Kit 2.00mm Oversize To 72.00mm 10.25 Compression Motorcycle fits CB1100F 1983

The WiseCO K1123 Top End Kit is a high-performance upgrade designed for the Honda K Series 1.5L and 1.8L engines. This kit is specifically engineered for applications seeking increased power, improved throttle response, and enhanced engine efficiency.

The WiseCO K1123 Top End Kit includes new pistons with a total displacement of 2.00mm and a compression height of 72.00mm. The pistons are designed to provide optimal engine combustion, resulting in increased power output. The piston design also includes a 10.25:1 compression ratio, which is ideal for high-performance applications and racing use.

The pistons are made from forged aluminum alloy, ensuring durability and strength even under extreme operating conditions. The piston skirts are designed with a low friction coating to minimize parasitic losses and improve engine efficiency.

The WiseCO K1123 Top End Kit also includes new performance-enhancing cylinder heads. The cylinder heads feature increased flow rates and reduced turbulence for improved combustion efficiency. The heads are also CNC machined for precise fitment and optimal flow characteristics.

The kit includes matching performance valves and springs to ensure proper valve function and reliability under high RPM operation. The valves are made from high-strength materials to withstand the increased cylinder head temperatures and pressures.

The WiseCO K1123 Top End Kit is a complete top end upgrade for the Honda K Series engine, providing significant power gains, improved throttle response, and enhanced engine efficiency. It is suitable for high-performance applications, including racing, and requires a skilled technician to install properly.

Please note that the installation of this kit may require additional modifications to the engine, including head porting, camshaft and crankshaft upgrades, and fuel system modifications, to achieve optimal performance. It is recommended that you consult with a professional mechanic or engine builder before installing this kit to ensure proper installation and optimal performance.

The Wiseco K1123 top end kit is a popular aftermarket solution for those looking to upgrade the top end of their 2.0L Honda K-series engine. This kit includes a pair of forged pistons with a 2.00mm compression height and a 72.00mm bore size, along with matching forged aluminum connecting rods and other necessary hardware. Here are some potential pros and cons of purchasing this kit:

1. Increased power: The forged pistons and rods allow for higher compression ratios and increased power output. This can be particularly beneficial for those looking to modify their engine for increased performance.

2. Durability: Forged pistons and rods are known for their strength and durability. This can help extend the life of the engine and reduce the risk of catastrophic failure.

3. Improved reliability: The forged components in this kit can help reduce the likelihood of engine issues such as piston slap or ring land failure.

4. Customization: The Wiseco K1123 kit offers a range of compression ratios to choose from, allowing for greater customization to meet specific performance goals.

1. Cost: The Wiseco K1123 kit is a premium option and can be quite expensive compared to stock or aftermarket components. This may not be a practical choice for those on a tight budget.

2. Installation complexity: Installing this kit requires a significant amount of engine disassembly and reassembly. This can be a time-consuming and labor-intensive process, especially for those without experience.

3. Potential for engine shrinkage: Installing larger pistons in an engine can result in some degree of engine shrinkage, which can lead to clearance issues. Careful attention to clearance measurements is necessary to ensure proper fitment.

The Wiseco K1123 top end kit offers several benefits for those looking to upgrade the top end of their Honda K-series engine, including increased power, durability, reliability, and customization options. However, it also comes with some drawbacks, such as a high cost, installation complexity, and potential for engine shrinkage. Ultimately, the decision to purchase this kit depends on individual performance goals, budget, and experience level. If you are comfortable with the installation process and have the financial resources to invest, the Wiseco K1123 kit can be a worthwhile investment for those seeking increased power and reliability from their engine.

If you are considering purchasing the Wiseco K1123 top end kit, it is recommended that you thoroughly research the installation process and ensure that you have the necessary tools and experience to complete the installation yourself. It may also be beneficial to consult with a professional mechanic or engine builder to ensure proper fitment and optimal performance. Additionally, carefully consider your performance goals and budget to determine whether the benefits of this kit outweigh the costs. If you are unsure, it may be worth exploring alternative options such as less expensive aftermarket components or modifications to your existing engine.

Details:

Feature forged pistons, rings, wrist pins, cir clips and top end gasket set. Sizing: 2.00mm Oversize, Compression: 10.25:1 Compression, Bore: 72.00mm, Sold as: Kit. Any damage claims may be exchanged for the identical item only. Displacement: 1123cc.

Note: Cylinder boring required. Wiseco, 72.0mm 10.25:1 Compression Ratio 4-Stroke Motorcycle Top End Piston Kit, This item fits the following model's: Honda CB1100F 1983. Contains all the necessary components for overbearing or rebuilding your top end. Bore - Standard: 70.00mm.

Non Chromed TW.

part #: k1123 prices

• $675.99-$844.99

specifications pistondon:

• for models: Cb1100f
• for years: 1983
• brand: Wiseco
• mpn: K1123
• part type: Compression
• make: Honda

shipping pistondon:

• cost: $0.00
• transit: 3-8 Days
• service: Economy, Standard, Expedited
• type: Fixed
• class: Economy, Standard, Expedited

returns pistondon:

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

seller pistondon:

• city: Loudon, Tennessee
• # reviews: 637369
• rating: 99.6%

general pistondon:

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

payments pistondon:

• other
• credit card: Discover
• wallet: Apple-pay

offer pistondon:

• availability: In Stock
• options: Ship-to-home
• quantity: 1
• started: April 14, 2026
• sold: 0

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