1. Motorcycle Cylinder Heads & Valve Covers For Sale
  2. sku: 12916681631805713
  3. BFO KDHU25

BFO KDHU25 Cylinder Head Kit Engine

fits model: Crf70, Xr70, S65, Ct70. make: Honda.

Kdhu25 Bfo Cylinder Head Kit For Honda Crf70 Xr70 S65 Engine Components Ct70

( Brand: Bfo ), ( Manufacturer Part Number: KDHU25 ), ( Bundle Listing: Yes ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Compatible Make: For Honda ), ( Compatible Model: Atc70 Crf70 Ct70 C70 Trx70 Xr70 S65 ), ( Engine: 50cc, 70cc ), ( Engine Type: 4-stroke ), ( Exhaust Valve Outside Diameter: 20mm ), ( Fit 1: For Honda 50cc Large Bore ), ( Fit 2: For Honda 70cc Small Bore Cylinder ), ( Fit For: For Domed 50cc Or Flat Top 70cc ), ( Including: Cylinder Head ), ( Inner Bore Size: 39mm ), ( Intake Valve Outside Diameter: 23mm ), ( Items Included: Gasket ), ( Length: 66mm ), ( Machine Type: Off-road Motorcycle, Street Motorcycle ), ( Note: Instruction Included ), ( Notice: This Is Aftermarket Replcement Part. ), ( Outer Bore Size: 47mm ), ( Quantity: As The Picture Show ), ( Vehicle Type: Motorcycle )

Review BFO Cylinder Head Kit Honda Engine Components fits CRF70 XR70 S65 CT70

Introducing the BFO KDHU25 Cylinder Head Kit, specifically designed for the Honda CRF70, XR70, and CT70 models with the S65 engine and CT70 model with the C engine. This premium cylinder head kit is an excellent choice for riders seeking top-tier performance and durability for their off-road bikes.

The BFO KDHU25 Cylinder Head Kit is meticulously engineered to enhance the power output and thermal efficiency of the engine. It comes with high-performance cylinder heads featuring improved combustion chamber design and larger intake and exhaust ports, which allow for more air and fuel mixture to enter and exit the engine, respectively. This results in a more potent combustion process, leading to increased horsepower and torque.

Moreover, the cylinder heads in this kit are manufactured using advanced materials and processes to ensure superior heat dissipation and resistance to wear and tear. The OEM-quality parts are precision-machined for a perfect fit and optimal sealing, ensuring a smooth engine operation and minimizing the risk of leaks.

The BFO KDHU25 Cylinder Head Kit also includes new exhaust valves and seats, intake valves and seats, and retainer kits. These components are designed to work in harmony with the high-performance cylinder heads, ensuring optimal engine performance and longevity.

In addition, this kit comes with new head gaskets, making it a complete solution for upgrading your Honda CRF70, XR70, or CT70's engine. The gaskets are made from high-temperature material to ensure a strong seal and prevent coolant leaks.

Installing the BFO KDHU25 Cylinder Head Kit is a straightforward process, thanks to the detailed installation instructions provided. The kit includes all necessary hardware, making it a hassle-free upgrade for your off-road bike.

In summary, the BFO KDHU25 Cylinder Head Kit is an essential upgrade for Honda CRF70, XR70, and CT70 riders looking to enhance their engine's performance and durability. With its high-performance cylinder heads, advanced materials, and easy installation, this kit is an excellent investment for any off-road enthusiast.

Buying a BFO KDHU25 cylinder head kit for a Honda CRF70/XR70 S65 engine CT70 comes with both advantages and disadvantages. Here's a detailed analysis:

Advantages:

1. Performance enhancement: The BFO KDHU25 cylinder head kit is designed to improve the engine's performance. It features a larger intake port and a high-performance exhaust port, allowing for better airflow and increased power output.

2. Durability: The kit is made from high-quality materials, ensuring long-lasting performance and durability. The cylinder head gasket is made from a heat-resistant material, reducing the risk of warping and failure.

3. Easy installation: The kit comes with all the necessary hardware for installation, making it a relatively straightforward process for experienced mechanics.

4. Cost-effective: Compared to other performance upgrades, the cylinder head kit is a cost-effective way to improve the engine's power output.

Disadvantages:

1. Complex installation: While the installation process is not overly complicated, it does require some level of mechanical expertise. Those without experience may find it challenging to install the kit correctly, potentially leading to engine damage.

2. Increased noise level: The larger intake and exhaust ports can lead to an increase in engine noise, which may be unwanted for some riders.

3. Potential power loss: In some cases, the power output increase may not be as significant as advertised. This can be due to various factors, including the condition of the engine before installation and the skill level of the installer.

Conclusion:

The BFO KDHU25 cylinder head kit for the Honda CRF70/XR70 S65 engine CT70 offers several advantages, including performance enhancement, durability, easy installation, and cost-effectiveness. However, it also comes with some disadvantages, such as the complexity of installation, increased noise level, and potential power loss.

If you are confident in your mechanical abilities and are looking for a cost-effective way to improve the performance of your Honda CRF70/XR70 S65 engine CT70, then the BFO KDHU25 cylinder head kit may be a worthwhile investment. However, if you lack experience in engine work or are not comfortable with the potential risks, it may be best to consider other upgrades.

Recommendation:

If you are considering purchasing the BFO KDHU25 cylinder head kit for your Honda CRF70/XR70 S65 engine CT70, it is recommended that you thoroughly research the installation process and ensure that you have the necessary tools and expertise to complete the job safely and correctly. Additionally, consider consulting with a professional mechanic to assess the condition of your engine and determine if this upgrade is the best option for your specific situation.

Details:

Manufacturer. This head will only work with FLAT TOP pistons. For Honda TRX70. Compare the Combustion Chamber Size shown below, to your current head.

Cylinder Head for Honda CRF70 XR70 CT70 C70 ATC70 TRX70 S65 50cc Large Bore / 70cc Small. Quick, Simple. Guaranteed Fitment. This head will only work with DOMED pistons.

Cylinder Head Kit For Honda CRF70 XR70 S65 Engine Components for CT70. . For Honda S65. Always the correct part.

specifications cylindermotorcycleiz:

  • for models: Crf70, Xr70, S65, Ct70
  • for makes: Honda
  • brand: Bfo
  • mpn: Kdhu25
  • bundle listing: Yes
  • california prop 65 warning: California Prop 65 Warning
  • compatible make: For Honda
  • compatible model: Atc70 Crf70 Ct70 C70 Trx70 Xr70 S65
  • engine: 50cc, 70cc
  • engine type: 4-stroke
  • exhaust valve outside diameter: 20mm
  • fit 1: For Honda 50cc Large Bore
  • fit 2: For Honda 70cc Small Bore Cylinder
  • fit for: For Domed 50cc Or Flat Top 70cc
  • including: Cylinder Head
  • inner bore size: 39mm
  • intake valve outside diameter: 23mm
  • items included: Gasket
  • length: 66mm
  • machine type: Off-road Motorcycle, Street Motorcycle
  • note: Instruction Included
  • notice: This Is Aftermarket Replcement Part.
  • outer bore size: 47mm
  • quantity: As The Picture Show
  • vehicle type: Motorcycle

seller cylindermotorcycleiz:

  • rating: 98.9%
  • # reviews: 5539
  • city: Elk Grove Village, Illinois

payments cylindermotorcycleiz:

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

offer cylindermotorcycleiz:

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

general cylindermotorcycleiz:

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

returns cylindermotorcycleiz:

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

shipping cylindermotorcycleiz:

  • type: Fixed
  • class: Standard
  • service: FedEx Ground / FedEx Home Delivery
  • carrier: FedEx
  • transit: 2-7 Days
  • cost: $0.00
for models: crf70, xr70, s65, ct70, for makes: honda, bundle listing: yes, california prop 65 warning: california prop 65 warning, compatible make: for honda, compatible model: atc70 crf70 ct70 c70 trx70 xr70 s65, engine: 50cc, 70cc, engine type: 4-stroke, exhaust valve outside diameter: 20mm, fit 1: for honda 50cc large bore, fit 2: for honda 70cc small bore cylinder, fit for: for domed 50cc or flat top 70cc, including: cylinder head, inner bore size: 39mm, intake valve outside diameter: 23mm, items included: gasket, length: 66mm, machine type: off-road motorcycle, street motorcycle, note: instruction included, notice: this is aftermarket replcement part., outer bore size: 47mm, quantity: as the picture show, vehicle type: motorcycle,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > cylinder heads, sku: 12916681631805713,
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