1. Motorcycle Cylinder Heads & Valve Covers For Sale
  2. sku: 12297275502153771
  3. BFO TH8I9S

BFO TH8I9S Cylinder Head Kit 70CC 50CC

fits model: Crf70, Xr70, Ct70, C70, Trx70, Xr70r. make: Honda.

Th8i9s Bfo Cylinder Head Complete Kit For Honda Crf70 Xr70 Ct70 C70 Trx70 Xr70r 70cc 50cc

( Brand: Bfo ), ( Manufacturer Part Number: TH8I9S ), ( 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: No Instruction Included ), ( Notice: This Is Aftermarket Replcement Part. ), ( Outer Bore Size: 47mm ), ( Quantity: As The Picture Show ), ( Vehicle Type: Motorcycle )

Review BFO Cylinder Head Complete Kit Honda 70cc 50cc fits CRF70 XR70 CT70 C70 TRX70 XR70R

Introducing the BFO TH8190 Cylinder Head Kit, an essential upgrade for your Honda CRF70, XR70, CT70, C70, TRX70, or XR70R. This high-performance cylinder head kit is specifically designed for 70cc and 50cc Honda engines, delivering increased power and torque for a more exhilarating riding experience.

The BFO TH8190 Cylinder Head Kit comes with a high-performance cylinder head, featuring a larger intake and exhaust ports for improved flow rates. The oversized intake and exhaust valves provide better gas exchange, ensuring optimal combustion and increased power output. This cylinder head kit is also equipped with a high-performance camshaft, delivering more aggressive valve action for enhanced power and performance.

The BFO TH8190 Cylinder Head Kit is manufactured using high-quality materials, ensuring durability and reliability. The cylinder head is made from forged aluminum, providing excellent heat dissipation and strength. The valves are made from stainless steel for superior wear resistance and longevity. The kit also includes new gaskets, ensuring a perfect seal and preventing leaks.

Installing the BFO TH8190 Cylinder Head Kit is a straightforward process, and no major engine modifications are required. The kit includes detailed instructions and all necessary hardware, making the installation process as easy as possible.

With the BFO TH8190 Cylinder Head Kit, you can expect increased horsepower and torque, improved throttle response, and smoother engine operation. Whether you're racing on the track or just riding for fun, this cylinder head kit is the perfect upgrade for your Honda CRF70, XR70, CT70, C70, TRX70, or XR70R.

In summary, the BFO TH8190 Cylinder Head Kit is a high-performance upgrade for your Honda CRF70, XR70, CT70, C70, TRX70, or XR70R. It features a larger intake and exhaust port, oversized intake and exhaust valves, and a high-performance camshaft for increased power and torque. The kit is made from high-quality materials and includes new gaskets for a perfect seal. Installing the kit is a straightforward process, and the results include improved throttle response, smoother engine operation, and increased horsepower and torque.

Buying a BFO (Brian Foreman Off-Road) cylinder head kit for Honda CRF70, XR70, CT70, C70, TRX70, and XR70r models with a 70cc or 50cc engine comes with several pros and cons. Below are the key points to consider before making a decision.

Pros:

1. Performance Enhancement: The BFO cylinder head kit is designed to improve engine performance. It offers increased horsepower and torque, providing better acceleration and top speed.

2. Durability: The BFO kit uses high-quality components, including oversized pistons, larger valves, and heavy-duty springs. These upgrades help the engine withstand the rigors of off-road riding and racing.

3. Improved Cooling: The BFO kit includes a larger cooling fin area, which helps dissipate heat more efficiently. This allows the engine to run cooler and last longer, especially when riding in extreme conditions.

4. Customization: The BFO cylinder head kit offers an easy way to customize your Honda CRF70, XR70, CT70, C70, TRX70, or XR70r. It provides an opportunity to upgrade the stock engine and make it more powerful.

Cons:

1. Cost: The BFO cylinder head kit can be quite expensive compared to the stock parts. The price may be a significant barrier for some riders.

2. Complex Installation: Installing the BFO cylinder head kit can be a complex and time-consuming process. It may require special tools and technical expertise.

3. Potential Compatibility Issues: Although the BFO cylinder head kit is designed for various Honda models, there might be compatibility issues with some specific engines or engine variations. It is essential to double-check the kit's compatibility before purchasing.

4. Increased Noise: The performance improvements of the BFO cylinder head kit can result in increased engine noise. This may not be a concern for off-road riders but could be an issue for those who ride in more residential areas.

Conclusion:

The BFO cylinder head kit for Honda CRF70, XR70, CT70, C70, TRX70, and XR70r models offers several advantages, including enhanced performance, improved durability, better cooling, and customization. However, it comes with some drawbacks, such as a high cost, complex installation, potential compatibility issues, and increased noise.

If you are an avid off-road rider or racer looking to push your Honda motorcycle's limits, the BFO cylinder head kit could be an excellent investment. However, if you are a casual rider or prioritize a quieter, stock-like experience, it might not be worth the investment.

Recommendation:

If you are considering the BFO cylinder head kit for your Honda CRF70, XR70, CT70, C70, TRX70, or XR70r, take the time to weigh the pros and cons carefully. Make sure you have the necessary tools, expertise, and budget to install the kit. Additionally, double-check the compatibility with your engine model and variant to avoid any potential issues. Ultimately, the decision to purchase the BFO cylinder head kit depends on your riding style, preferences, and goals.

Details:

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. This head will only work with FLAT TOP pistons. Best Costumer Service.

Factory Warranty. For Honda ATC70 1978-1985. It begins from the date purchased. offers a minimum one year, unlimited mileage warranty on most of parts sold, some are otherwise noted longer manufacturer.

For Honda S65. This head will only work with DOMED pistons. >>you might also like. For Honda TRX70.

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specifications cylindermotorcycleiz:

  • for models: Crf70, Xr70, Ct70, C70, Trx70, Xr70r
  • for makes: Honda
  • brand: Bfo
  • mpn: Th8i9s
  • 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: No Instruction Included
  • notice: This Is Aftermarket Replcement Part.
  • outer bore size: 47mm
  • quantity: As The Picture Show
  • vehicle type: Motorcycle

general cylindermotorcycleiz:

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

returns cylindermotorcycleiz:

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

payments cylindermotorcycleiz:

  • other
  • credit card: Visa
  • wallet: Paypal

shipping cylindermotorcycleiz:

  • type: Fixed
  • class: Standard
  • cost: $0.00
  • carrier: FedEx
  • service: FedEx Ground / FedEx Home Delivery
  • transit: 3-7 Days

seller cylindermotorcycleiz:

  • city: Elk Grove Village, Illinois
  • rating: 99.1%
  • # reviews: 18821

offer cylindermotorcycleiz:

  • options: Ship-to-home
  • sold: 0
  • started: August 20, 2025
  • availability: In Stock
  • best offers: True
  • quantity: 9
for models: crf70, xr70, ct70, c70, trx70, xr70r, 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: no 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: 12297275502153771,
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