1. Motorcycle Cylinder Heads & Valve Covers For Sale
  2. sku: 11849033338297622
  3. BFO 7RWYG8

BFO 7RWYG8 Cylinder Head Kit Performance 70CC 50CC

fits model: Crf70, Xr70, C70. make: Honda. year: 1970.

7rwyg8 Bfo Cylinder Head Complete Kit For Honda Crf70 Xr70 Ct 70 C70 70cc 50cc Performance

( Brand: Bfo ), ( Manufacturer Part Number: 7RWYG8 ), ( Bundle Listing: Yes ), ( 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 Ct 50cc Performance fits CRF70 XR70 C70 1970

The BFO 7RWYG8 Cylinder Head Kit is an exceptional upgrade for Honda CRF70, XR70, C70, and 70cc/50cc models. This performance-oriented kit is designed to enhance the power and durability of your mini bike's engine.

The centerpiece of this kit is the high-performance cylinder head. It features a precision-machined combustion chamber that offers improved airflow and better fuel mixture for optimal combustion. The head also includes new, high-performance exhaust valves and seats, ensuring a more efficient exhaust gas flow and increased power output.

Moreover, the BFO 7RWYG8 Cylinder Head Kit includes a new, high-quality camshaft. This camshaft is designed to provide better valve lift and duration, resulting in increased power and torque throughout the RPM range. The kit also includes new camshaft bearings and a new timing belt to ensure a smooth and reliable operation.

Additionally, the BFO 7RWYG8 Cylinder Head Kit comes with a new, high-performance piston. This piston is made from a strong and lightweight material, allowing for increased power output and better engine response. The piston also features a new, improved ring set, ensuring optimal compression and reducing engine wear.

The kit also includes new, high-quality gaskets, ensuring a perfect seal between the cylinder head and the engine block. The gaskets are designed to withstand the increased pressure and heat generated by the performance upgrade.

In summary, the BFO 7RWYG8 Cylinder Head Kit is an excellent investment for any Honda CRF70, XR70, C70, or 70cc/50cc mini bike owner looking to increase power and durability. This kit includes a high-performance cylinder head, new camshaft, new piston, and all necessary gaskets and hardware for a straightforward and effective installation.

Buying a BFO 7RWYG8 cylinder head kit for a Honda CRF70, XR70, C70, or 70cc/50cc model can offer several performance benefits. Here are some potential pros and cons to consider before making a purchase:

Pros:

1. Increased Power: The BFO cylinder head kit is designed to increase the power output of your Honda CRF70 engine. This can result in improved acceleration and top speed.

2. Improved Throttle Response: The new cylinder head can improve the bike's throttle response, making it more responsive and agile.

3. Enhanced Cooling: The BFO cylinder head kit comes with a larger cooling fin design, which can help improve cooling efficiency and prevent engine overheating.

4. Durability: The BFO cylinder head kit is made from high-quality materials, which can help improve the engine's durability and longevity.

5. Customizability: The BFO cylinder head kit is a popular aftermarket upgrade for Honda CRF70 models, and there are several different versions available, allowing you to choose the one that best suits your riding style and performance goals.

Cons:

1. Cost: The BFO cylinder head kit can be a significant investment, especially when compared to the cost of a stock cylinder head.

2. Installation Complexity: Installing the BFO cylinder head kit can be a complex process, requiring specialized tools and a good understanding of engine mechanics. It may be best to have a professional mechanic perform the installation.

3. Potential Compatibility Issues: While the BFO cylinder head kit is designed to fit Honda CRF70 models, there may be some compatibility issues with certain years or variations of the bike. Be sure to check the compatibility chart provided by the manufacturer before making a purchase.

4. Potential Engine Noise: The BFO cylinder head kit may result in increased engine noise, which some riders may find annoying or disturbing.

Conclusion:

The BFO 7RWYG8 cylinder head kit for Honda CRF70 models can offer significant performance benefits, including increased power, improved throttle response, enhanced cooling, and durability. However, it also comes with some potential downsides, such as cost, installation complexity, potential compatibility issues, and increased engine noise. Ultimately, whether or not the kit is worth the investment depends on your individual riding style, performance goals, and budget. If you are serious about improving the performance of your Honda CRF70, the BFO cylinder head kit is definitely worth considering, but be sure to do your research and prepare for the installation process.

Recommendation:

If you are interested in purchasing the BFO 7RWYG8 cylinder head kit for your Honda CRF70, I would recommend doing your research and carefully considering the pros and cons before making a decision. Make sure to check the compatibility chart provided by the manufacturer and consider the cost, installation complexity, and potential noise level. If you are confident that the kit is the right choice for you, I would recommend purchasing it from a reputable dealer or retailer to ensure that you receive a high-quality product. Additionally, consider having a professional mechanic perform the installation to ensure that it is done correctly and safely.

Details:

For Honda ATC70 1978-1985. This head will only work with FLAT TOP pistons. Compare the Combustion Chamber Size shown below, to your current head. For Honda S65.

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

specifications cylindermotorcycleiz:

  • for models: Crf70, Xr70, C70
  • for makes: Honda
  • for years: 1970
  • brand: Bfo
  • mpn: 7rwyg8
  • bundle listing: Yes
  • 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

payments cylindermotorcycleiz:

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

shipping cylindermotorcycleiz:

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

offer cylindermotorcycleiz:

  • availability: In Stock
  • options: Ship-to-home
  • started: June 3, 2025
  • quantity: 10
  • sold: 0

seller cylindermotorcycleiz:

  • rating: 99.2%
  • # reviews: 20551
  • city: Rowland height, California

returns cylindermotorcycleiz:

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

general cylindermotorcycleiz:

  • condition: New
  • Motorcycle Scooter Parts Accessories > Engines Engine Parts > Cylinder Heads
for models: crf70, xr70, c70, for makes: honda, for years: 1970, bundle listing: yes, 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: 11849033338297622,
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