1. Motorcycle Cylinder Heads & Valve Covers For Sale
  2. sku: 13617335987966751
  3. BFO H3P6DQ

BFO H3P6DQ Cylinder Head Kit 70CC 50CC

fits make: Honda.

H3p6dq Bfo Cylinder Head Complete Kit For Honda 70cc Small Bore 50cc

( Brand: Bfo ), ( Manufacturer Part Number: H3P6DQ ), ( 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 Small Bore 50cc

Introducing the BFO H3P6DQ Cylinder Head Kit, specifically designed for Honda engines with a displacement of 50cc and 70cc. This high-quality replacement cylinder head kit is an excellent choice for those seeking to restore the performance of their Honda engine.

The BFO H3P6DQ Cylinder Head Kit comes with all the necessary components to replace the worn-out or damaged parts of your engine's cylinder head. The kit includes an OEM-quality cylinder head, new exhaust valves, new intake valves, and matching valve guides. Additionally, the kit comes with new valve springs, retainers, and seats to ensure a proper seal and optimal engine function.

The cylinder head is made from high-strength aluminum alloy, ensuring durability and resistance to thermal stress. The new valves are made from heat-resistant materials, ensuring they can withstand the extreme temperatures inside the cylinder head. The valve guides are precision-machined to ensure a perfect fit and optimal valve alignment, leading to improved engine efficiency and reduced wear.

The intake and exhaust valves are designed to provide optimal air and fuel intake and exhaust gases outflow. The new valve seats are precision-machined to ensure a perfect seal, preventing any leakage and ensuring optimal combustion chamber efficiency.

The BFO H3P6DQ Cylinder Head Kit is easy to install, with all the necessary hardware included in the package. The instructions are clear, and the parts are marked for easy identification. The kit is a direct replacement for your OEM cylinder head, ensuring a hassle-free installation process.

In conclusion, the BFO H3P6DQ Cylinder Head Kit is an excellent choice for those seeking to restore the performance of their Honda engine. With high-quality components, easy installation, and a perfect fit, you can trust that this kit will provide you with the reliability and durability you need for your engine.

Buying a BFO H3P6DQ cylinder head kit for a Honda 70cc or 50cc engine comes with several pros and cons that every potential buyer should consider before making a purchase.

Pros:

1. Performance Enhancement: The BFO H3P6DQ cylinder head kit is designed to improve the engine's performance by increasing the compression ratio, which results in better combustion and increased power output.

2. Durability: The kit is made of high-quality materials, including the hard anodized aluminum cylinder head and the durable valves and piston rings. This makes the kit more resilient to wear and tear, especially in high-use or racing applications.

3. Cost-Effective: Compared to other performance upgrades, a cylinder head kit can be a cost-effective solution for increasing power and improving engine efficiency.

Cons:

1. Complex Installation: Installing a cylinder head kit can be a complex and time-consuming process, especially for those without experience in engine mechanics. It may require specialized tools and knowledge, which could add to the overall cost.

2. Risk of Damage: The cylinder head kit installation process involves removing the engine head, which can expose the engine to potential damage if not done correctly. Additionally, improper installation could result in engine damage and decreased performance.

3. Cost: While the kit may be cost-effective compared to other upgrades, it is still an investment that requires a significant financial commitment. Additionally, the cost of the kit may not be covered by a warranty or insurance, which could add to the overall expense.

Conclusion:

The BFO H3P6DQ cylinder head kit for a Honda 70cc or 50cc engine offers several benefits, including improved performance and durability. However, it also comes with some drawbacks, such as the complex installation process and the cost. Ultimately, the decision to purchase a cylinder head kit depends on the individual's budget, experience level, and desired performance gains.

Recommendation:

If you are considering purchasing a BFO H3P6DQ cylinder head kit for your Honda 70cc or 50cc engine, it is recommended that you carefully consider the pros and cons and weigh them against your personal goals and circumstances. If you have experience in engine mechanics and are comfortable with the installation process, this kit could be a cost-effective and rewarding upgrade. However, if you are unsure of your ability to install the kit or if the cost is a concern, it may be worth considering other, less complex performance upgrades or seeking professional assistance.

Details:

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

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

Quick, Simple. Fast Shipping. For Honda ATC70 1978-1985. Always the correct part.

specifications cylindermotorcycleiz:

  • for makes: Honda
  • brand: Bfo
  • mpn: H3p6dq
  • 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

seller cylindermotorcycleiz:

  • city: Elk Grove Village, Illinois
  • rating: 99.2%
  • # reviews: 27849

offer cylindermotorcycleiz:

  • best offers: True
  • options: Ship-to-home
  • started: February 8, 2026
  • sold: 0
  • availability: In Stock

payments cylindermotorcycleiz:

  • wallet: Apple-pay
  • credit card: Discover
  • other

general cylindermotorcycleiz:

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

shipping cylindermotorcycleiz:

  • cost: $0.00
  • type: Fixed
  • service: FedEx Ground / FedEx Home Delivery
  • carrier: FedEx
  • class: Standard
  • transit: 3-6 Days

returns cylindermotorcycleiz:

  • time: 30 Days
  • paid by: Seller
  • policy: Returns Accepted
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: 13617335987966751,
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