1. Motorcycle Cylinder Heads & Valve Covers For Sale
  2. sku: 12104932744372771
  3. BFO N1H2QX

BFO N1H2QX Cylinder Head Kit 70CC 50CC

fits model: Xr70, Ct70, C70, Xr70r, Crf. make: Honda. year: 1970.

N1h2qx Bfo Cylinder Head Complete Kit For Honda Crf 70 Xr70 Ct70 C70 Xr70r 70cc 50cc

( Brand: Bfo ), ( Manufacturer Part Number: N1H2QX ), ( 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 50cc fits XR70 CT70 C70 XR70R CRF 1970

The BFO N1H2QX Cylinder Head Kit is an exceptional upgrade for Honda CRF 70, XR70, CT70, C70, XR70R, and 70cc/50cc models. This high-performance cylinder head kit is meticulously engineered and designed to deliver enhanced power, improved throttle response, and increased durability to your Honda engine.

The BFO N1H2QX Cylinder Head Kit comes with a high-performance cylinder head. The cylinder head features a revised combustion chamber design that optimizes the air-fuel mixture for more complete combustion. This results in increased power output and improved engine efficiency.

The kit also includes a set of high-performance pistons and connecting rods. The pistons are made of a high-strength material that provides superior strength and durability. The connecting rods are precision-machined to ensure a perfect fit and optimal power transfer.

Additionally, the BFO N1H2QX Cylinder Head Kit comes with a set of oversized intake and exhaust valves. The intake valves are larger in diameter, allowing more air to flow into the engine, while the exhaust valves are designed to facilitate the efficient expulsion of exhaust gases. These valves are also made of high-quality material that ensures long-lasting performance.

The cylinder head kit also includes a set of high-performance cylinder head gaskets. These gaskets are designed to provide a perfect seal between the cylinder head and the engine block, ensuring that no gases leak out during operation.

The BFO N1H2QX Cylinder Head Kit is also compatible with various performance camshafts and timing components, allowing you to fine-tune your engine for maximum power output.

Installation of the BFO N1H2QX Cylinder Head Kit is relatively straightforward, but we recommend that it is installed by a professional mechanic to ensure proper installation and setup.

Overall, the BFO N1H2QX Cylinder Head Kit is an excellent upgrade for any Honda CRF 70, XR70, CT70, C70, XR70R, or 70cc/50cc engine. It delivers increased power, improved throttle response, and enhanced durability, making it a worthwhile investment for any off-road enthusiast or racer.

The BFO N1H2QX cylinder head kit is designed for various Honda CRF models, including the XR70, CT70, C70, and XR70R, with engines of 70cc and 50cc. Here are some pros and cons of buying this cylinder head kit to help you make an informed decision.

Pros:

1. Improved Performance: The BFO N1H2QX cylinder head kit is known to provide better engine performance due to its high-performance design.

2. Enhanced Durability: The kit includes a new cylinder head, which can help increase the lifespan of your engine by reducing the wear and tear on the old head.

3. Better Throttle Response: The upgraded design of the cylinder head kit can lead to improved throttle response, making your bike more responsive and agile.

4. Improved Fuel Economy: The kit can help improve fuel economy by ensuring that the engine is running more efficiently.

Cons:

1. Cost: The BFO N1H2QX cylinder head kit can be quite expensive compared to stock parts.

2. Installation Complexity: Installing the cylinder head kit can be a complex process, and it may require specialized tools and expertise.

3. Potential for Increased Noise: Some users have reported that the kit can lead to increased engine noise, which may not be desirable for all riders.

4. Potential for Decreased Fuel Efficiency: In some cases, the upgraded design of the cylinder head kit may lead to decreased fuel efficiency, which can be a drawback for riders who prioritize fuel economy.

Conclusion:

The BFO N1H2QX cylinder head kit can offer significant performance improvements for Honda CRF models, but it comes with some drawbacks. The cost and complexity of installation are potential downsides, while the potential for increased noise and decreased fuel efficiency are other factors to consider. Ultimately, whether or not this kit is right for you depends on your priorities as a rider. If you're looking for maximum performance and don't mind the added cost and complexity, then the BFO N1H2QX cylinder head kit may be a worthwhile investment. However, if you prioritize fuel efficiency or a quieter riding experience, then you may want to consider other options.

Recommendation:

If you're considering purchasing the BFO N1H2QX cylinder head kit for your Honda CRF, I would recommend doing thorough research on the product and its installation process before making a decision. Consider consulting with a professional mechanic or experienced Honda CRF owner to get their opinion on the benefits and drawbacks of the kit. Additionally, make sure that you have the necessary tools and expertise to install the kit, or consider hiring a professional to do it for you. Finally, weigh the potential performance gains against the cost and potential drawbacks to determine if the kit is right for you.

Details:

For Honda ATC70 1978-1985. For Honda TRX70. This head will only work with DOMED pistons. For Honda S65.

This head will only work with FLAT TOP pistons. Cylinder Head for Honda CRF70 XR70 CT70 C70 ATC70 TRX70 S65 50cc Large Bore / 70cc Small. Compare the Combustion Chamber Size shown below, to your current head. It begins from the date purchased.

specifications cylindermotorcycleiz:

  • for models: Xr70, Ct70, C70, Xr70r, Crf
  • for makes: Honda
  • for years: 1970
  • brand: Bfo
  • mpn: N1h2qx
  • 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

offer cylindermotorcycleiz:

  • options: Ship-to-home
  • availability: In Stock
  • sold: 0
  • started: July 17, 2025
  • quantity: 5
  • best offers: True

general cylindermotorcycleiz:

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

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  • credit card: Diners-club
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seller cylindermotorcycleiz:

  • city: Houston, Texas
  • # reviews: 12839
  • rating: 99.2%

shipping cylindermotorcycleiz:

  • service: FedEx Ground or FedEx Home Delivery
  • type: Fixed
  • transit: 5-11 Days
  • carrier: FedEx
  • cost: $0.00
  • class: Standard

returns cylindermotorcycleiz:

  • policy: Returns Accepted
  • paid by: Seller
  • time: 30 Days
for models: xr70, ct70, c70, xr70r, crf, for makes: honda, for years: 1970, 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: 12104932744372771,
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