1. Motorcycle Cylinder Heads & Valve Covers For Sale
  2. sku: 12626096784274771
  3. BFO XV4YAR

BFO XV4YAR Cylinder Head Kit 70CC 50CC

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

Xv4yar Bfo Cylinder Head Complete Kit For Honda Crf70 Xr70 Ct70 C70 Trx70 Xr70r 70cc 50cc

( Brand: Bfo ), ( Manufacturer Part Number: XV4YAR ), ( 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 XV4YAR Cylinder Head Kit, an upgrade solution designed specifically for Honda CRF70, XR70, CT70, C70, TRX70, and XR70R models with 70cc and 50cc engines. This cylinder head kit is a game-changer for those seeking improved performance and reliability from their mini-bikes.

The XV4YAR Cylinder Head Kit is engineered with precision and care to ensure a perfect fit and seamless integration with your Honda mini-bike. The kit includes a new cylinder head, exhaust ports, and intake ports, all designed to optimize air and fuel flow for increased power and torque.

The cylinder head is made from high-strength aluminum alloy, ensuring durability and lightweight construction. The exhaust ports have been meticulously designed to maximize exhaust gas flow, reducing backpressure and enhancing engine efficiency. The intake ports, on the other hand, offer a larger intake area, allowing for more air to flow into the engine for better combustion.

The BFO XV4YAR Cylinder Head Kit also features improved cooling capabilities. The new cylinder head design includes larger cooling fins and improved cooling passages, ensuring that your engine stays cool even during the most demanding riding conditions.

The kit comes with all necessary hardware for installation, including new head gaskets, camshafts, and valves. The installation process is straightforward and can be completed by an experienced home mechanic or at a local shop.

By upgrading to the BFO XV4YAR Cylinder Head Kit, you can expect improved power and torque, increased engine efficiency, and enhanced cooling capabilities. This kit is perfect for those looking to take their Honda mini-bike to the next level, whether for racing, trail riding, or just for fun.

In summary, the BFO XV4YAR Cylinder Head Kit is a high-performance upgrade solution for Honda CRF70, XR70, CT70, C70, TRX70, and XR70R models with 70cc and 50cc engines. It offers improved power and torque, increased engine efficiency, and enhanced cooling capabilities, making it an essential upgrade for any serious mini-bike enthusiast.

Buying a BFO XV4YAR cylinder head kit for Honda CRF70, XR70, CT70, C70, TRX70, XR70r, and 70cc/50cc models can have several advantages and disadvantages. Here's a detailed analysis:

Advantages:

1. Performance Improvement: The BFO XV4YAR cylinder head kit is designed to enhance the engine's power output and torque, resulting in better acceleration and top speed.

2. Durability: The kit is made of high-quality materials that can withstand the rigors of off-road riding. The kit also includes hard-anodized cylinder liners, which provide excellent resistance to wear and tear.

3. Improved Cooling: The BFO XV4YAR cylinder head kit comes with a larger cooling fin design, which allows for better heat dissipation and improved engine performance.

4. Easy Installation: The kit is designed to be easy to install, and comes with detailed instructions and all necessary hardware.

5. Cost-Effective: Compared to the cost of a new engine or a completely rebuilt one, the BFO XV4YAR cylinder head kit is a cost-effective solution for those looking to improve their engine's performance.

Disadvantages:

1. Upfront Cost: The BFO XV4YAR cylinder head kit can be a significant investment upfront. However, the long-term benefits of improved performance and durability may outweigh the initial cost.

2. Customization: The kit may not be a perfect fit for every Honda CRF70, XR70, CT70, C70, TRX70, XR70r, and 70cc/50cc model, and some customization may be required for a perfect fit.

3. Availability: The BFO XV4YAR cylinder head kit may not be readily available in every market, and shipping times may vary.

Conclusion:

In conclusion, the BFO XV4YAR cylinder head kit can offer significant performance improvements, increased durability, and improved cooling for Honda CRF70, XR70, CT70, C70, TRX70, XR70r, and 70cc/50cc models. While the upfront cost may be a disadvantage, the long-term benefits and cost-effectiveness make it a worthwhile investment for serious off-road enthusiasts. However, it's essential to ensure that the kit is a perfect fit for your specific model and that it is installed correctly to achieve optimal performance.

Recommendation:

Based on the advantages and disadvantages discussed, I would recommend the BFO XV4YAR cylinder head kit for Honda CRF70, XR70, CT70, C70, TRX70, XR70r, and 70cc/50cc owners who are looking to significantly improve their engine's performance and durability. However, it's crucial to ensure that the kit is a perfect fit for your specific model and that it is installed correctly to achieve optimal performance. Additionally, it's recommended to purchase the kit from a reputable dealer to ensure its authenticity and quality.

Details:

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 TRX70. This head will only work with FLAT TOP pistons.

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

Compare the Combustion Chamber Size shown below, to your current head. Fast Shipping. Cylinder Head for Honda CRF70 XR70 CT70 C70 ATC70 TRX70 S65 50cc Large Bore / 70cc Small. Factory Warranty.

>>you might also like.

specifications cylindermotorcycleiz:

  • for models: Crf70, Xr70, Ct70, C70, Trx70, Xr70r
  • for makes: Honda
  • brand: Bfo
  • mpn: Xv4yar
  • 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

payments cylindermotorcycleiz:

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

returns cylindermotorcycleiz:

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

seller cylindermotorcycleiz:

  • city: Elk Grove Village, Illinois
  • rating: 98.9%
  • # reviews: 19045

shipping cylindermotorcycleiz:

  • carrier: FedEx
  • transit: 3-8 Days
  • service: FedEx Ground / FedEx Home Delivery
  • cost: $0.00
  • type: Fixed
  • class: Standard

offer cylindermotorcycleiz:

  • sold: 0
  • options: Ship-to-home
  • best offers: True
  • availability: In Stock
  • started: October 8, 2025

general cylindermotorcycleiz:

  • Motorcycle Scooter Parts Accessories > Engines Engine Parts > Cylinder Heads
  • condition: New
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: 12626096784274771,
Bfo XV4YAR Is Similar To:

Copyright © cylindermotorcycleiz.com