1. Motorcycle Cylinder Heads & Valve Covers For Sale
  2. sku: 11923777420101751
  3. BFO 8LFS7K

BFO 8LFS7K Cylinder Head Kit 70CC 50CC

fits model: Crf70, Xr70, C70, Trx70. make: Honda. year: 1970.

8lfs7k Bfo Cylinder Head Complete Kit For Honda Crf70 Xr70 Ct 70 C70 Trx70 70cc 50cc

( Brand: Bfo ), ( Manufacturer Part Number: 8LFS7K ), ( 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 Ct 50cc fits CRF70 XR70 C70 TRX70 1970

The BFO 8LFS7K Cylinder Head Kit is an excellent upgrade for Honda CRF70, XR70, C70, TRX70, and other 70cc and 50cc models. This kit is specifically designed to provide enhanced performance, durability, and reliability for your Honda mini-bike.

The heart of this cylinder head kit is a new, high-performance cylinder head. The head features a larger intake and exhaust port for improved breathing, allowing for increased power output and better engine response. The combustion chamber has been redesigned with a more efficient shape, reducing fuel waste and improving combustion efficiency. The head also includes upgraded valves and valve guides, ensuring a precise valve motion and reducing the risk of valve float at higher engine speeds.

The kit also includes a new set of piston and rings. The piston is forged from high-strength aluminum alloy, ensuring superior strength and durability. The piston crown has been optimized for the new cylinder head design, allowing for a more efficient transfer of power from the combustion chamber to the crankshaft. The piston rings have been upgraded to provide better sealing, reducing the risk of oil leaks and improving engine performance.

The cylinder head kit also includes a new set of cylinder head gaskets, ensuring a perfect seal between the cylinder head and the engine block. The gaskets are made from high-quality materials and are precision-machined to ensure a perfect fit.

The BFO 8LFS7K Cylinder Head Kit is easy to install, with all necessary hardware included in the package. The kit also includes detailed installation instructions, making the installation process as straightforward as possible.

In summary, the BFO 8LFS7K Cylinder Head Kit is a high-performance upgrade for Honda CRF70, XR70, C70, TRX70, and other 70cc and 50cc models. With its improved breathing, efficient combustion, and durable components, this kit will provide enhanced performance, reliability, and durability for your mini-bike.

Buying a BFO 8LFS7K Cylinder Head Kit for Honda CRF70, XR70, C70, TRX70, 70cc, and 50cc: A Comprehensive Analysis

Introduction:

The BFO 8LFS7K Cylinder Head Kit is a popular aftermarket upgrade for various Honda mini-bikes, including the CRF70, XR70, C70, TRX70, 70cc, and 50cc models. This kit promises improved engine performance, increased power, and better cooling. In this analysis, we will discuss the advantages and disadvantages of purchasing this cylinder head kit.

Pros:

1. Enhanced Performance: The BFO 8LFS7K Cylinder Head Kit is designed to provide better engine performance by increasing the flow of gases in and out of the engine. This results in more power and better throttle response.

2. Improved Cooling: The kit includes a new cooling system that enhances the cooling capacity of the engine. This helps prevent engine overheating, ensuring the engine runs more efficiently and lasts longer.

3. Durability: The BFO Cylinder Head Kit is made from high-quality materials that provide better durability compared to the stock parts. This helps prevent engine damage and reduces the need for frequent repairs.

4. Easy Installation: The installation process for this kit is relatively straightforward, and most users can complete the installation in a few hours.

5. Cost-Effective: Compared to other aftermarket upgrades, the BFO 8LFS7K Cylinder Head Kit is a cost-effective option for those looking to improve their Honda mini-bike's performance.

Cons:

1. Requires Additional Parts: To install the BFO Cylinder Head Kit, users may need to purchase additional parts such as gaskets, head bolts, and an oil cooler.

2. Potential for Leakage: Some users have reported issues with oil and coolant leakage after installing the kit. Proper installation and the use of high-quality seals can help minimize this risk.

3. Performance Variability: The performance improvement may vary depending on the specific Honda mini-bike model and the condition of the engine before the installation.

Conclusion:

The BFO 8LFS7K Cylinder Head Kit offers several advantages, including enhanced performance, improved cooling, durability, easy installation, and cost-effectiveness. However, it also comes with some potential disadvantages, such as the need for additional parts, the risk of leakage, and performance variability.

Recommendation:

If you're looking to improve the performance of your Honda mini-bike and are willing to accept the potential risks, the BFO 8LFS7K Cylinder Head Kit is a worthwhile investment. However, it's essential to ensure proper installation, use high-quality seals, and consider the potential performance variability. Additionally, make sure to purchase any necessary additional parts before starting the installation process.

Details:

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

For Honda S65. Fast Shipping. Always the correct part. Manufacturer.

G guaranteed Fitment. For Honda ATC70 1978-1985. Quick, Simple. Cylinder Head for Honda CRF70 XR70 CT70 C70 ATC70 TRX70 S65 50cc Large Bore / 70cc Small.

specifications cylindermotorcycleiz:

  • for models: Crf70, Xr70, C70, Trx70
  • for makes: Honda
  • for years: 1970
  • brand: Bfo
  • mpn: 8lfs7k
  • 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:

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

returns cylindermotorcycleiz:

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

general cylindermotorcycleiz:

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

offer cylindermotorcycleiz:

  • quantity: 10
  • availability: In Stock
  • sold: 0
  • options: Ship-to-home
  • started: June 16, 2025

seller cylindermotorcycleiz:

  • city: Rowland height, California
  • # reviews: 25360
  • rating: 99.0%

shipping cylindermotorcycleiz:

  • service: FedEx Ground or FedEx Home Delivery
  • class: Standard
  • type: Fixed
  • transit: 3-8 Days
  • cost: $0.00
  • carrier: FedEx
for models: crf70, xr70, c70, trx70, 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: 11923777420101751,
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