BFO P4QDH3 Cylinder Head Kit ATC70 70CC 50CC

( Brand: Bfo ), ( Manufacturer Part Number: P4QDH3 ), ( 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 CRF 1970

BFO P4QDH3 Cylinder Head Kit for Honda CRF 70 (XR70, CT70, C70, ATG70, 70cc, 50cc)

The BFO P4QDH3 Cylinder Head Kit is specifically designed for Honda CRF 70 models, including XR70, CT70, C70, ATG70, and those with 70cc and 50cc engines. This high-performance kit is an excellent choice for riders seeking to enhance their off-road motorbike's power and durability.

The cylinder head is the heart of your engine, and this kit's components are meticulously engineered to deliver superior performance. The OEM-quality cylinder head is CNC machined from premium aluminum alloy for maximum strength and heat dissipation. The cylinder head intake ports are designed to optimize airflow and fuel mixture, resulting in a more potent combustion process.

This cylinder head kit comes with an upgraded exhaust port design that improves exhaust gas flow, reducing backpressure and enhancing engine efficiency. It also includes a high-performance exhaust valve and spring kit, providing better sealing and reducing the likelihood of exhaust leaks.

The BFO P4QDH3 Cylinder Head Kit is designed to be a direct replacement for the OEM cylinder head. It comes with all necessary hardware, including new head gaskets and studs, making the installation process straightforward and hassle-free.

1. OEM-quality CNC-machined aluminum alloy cylinder head.

2. Optimized intake ports for improved airflow and fuel mixture.

3. Upgraded exhaust port design for enhanced exhaust gas flow.

4. High-performance exhaust valve and spring kit.

5. Includes all necessary hardware for a straightforward installation.

1. Increased power and torque for improved off-road performance.

2. Improved engine efficiency and reduced backpressure.

3. Superior heat dissipation for more consistent engine operation.

4. Enhanced durability and resistance to engine wear.

5. Straightforward installation process using included hardware.

If you're looking to take your Honda CRF 70 to the next level, the BFO P4QDH3 Cylinder Head Kit is an excellent investment. Upgrade your engine and unlock newfound power, efficiency, and durability with this premium cylinder head kit.

Pros and Cons of Buying a BFO P4QDH3 Cylinder Head Kit for Honda CRF 70, XR70, CT70, C70, AT70, and 70cc/50cc Models

The BFO P4QDH3 cylinder head kit is a popular upgrade for Honda CRF 70, XR70, CT70, C70, AT70, and 50cc models. This kit offers several benefits to off-road enthusiasts and racers, but it also comes with some drawbacks. In this article, we will discuss the pros and cons of purchasing a BFO P4QDH3 cylinder head kit for your Honda dirt bike.

1. Increased Power: The BFO P4QDH3 cylinder head kit is designed to provide more power and torque to your Honda dirt bike. This can help improve acceleration, top speed, and overall performance.

2. Improved Cooling: The new cylinder head comes with larger cooling fins and improved cooling channels, which can help keep your engine running cooler during long rides or high-speed racing.

3. Enhanced Durability: The BFO P4QDH3 cylinder head kit is made from high-quality materials and is designed to withstand the rigors of off-road racing. This can help extend the life of your engine and reduce maintenance costs.

4. Better Fuel Efficiency: The increased power and improved cooling can also lead to better fuel efficiency, as your engine will be able to run more efficiently and use less fuel.

1. Cost: The BFO P4QDH3 cylinder head kit can be quite expensive, especially when compared to the cost of a stock cylinder head. This may be a significant investment for some riders.

2. Installation: Installing the new cylinder head kit can be a complex and time-consuming process. It may require specialized tools and a good understanding of engine mechanics.

3. Compatibility: The BFO P4QDH3 cylinder head kit may not be compatible with all Honda CRF models. Be sure to check the compatibility before making a purchase.

The BFO P4QDH3 cylinder head kit offers several benefits to riders looking to improve the performance of their Honda CRF 70, XR70, CT70, C70, AT70, and 50cc models. These benefits include increased power, improved cooling, enhanced durability, and better fuel efficiency. However, the high cost, complex installation process, and potential compatibility issues may be drawbacks for some riders. Ultimately, the decision to purchase the BFO P4QDH3 cylinder head kit will depend on your budget, technical skills, and desired level of performance.

If you are an experienced rider with a good understanding of engine mechanics and a significant budget, the BFO P4QDH3 cylinder head kit may be a worthwhile investment for your Honda CRF 70, XR70, CT70, C70, AT70, or 50cc model. However, if you are a beginner or have limited resources, it may be best to consider other performance upgrades or wait until you have more experience and knowledge before investing in a new cylinder head kit.

Details:

Fast Shipping. 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.

Compare the Combustion Chamber Size shown below, to your current head. For Honda TRX70. . For Honda ATC70 1978-1985.

This head will only work with DOMED pistons.

part #: p4qdh3 prices

• $33.32-$67.41

specifications cylindermotorcycleiz:

• for models: Xr70, Ct70, C70, Crf
• for makes: Honda
• for years: 1970
• brand: Bfo
• mpn: P4qdh3
• 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

shipping cylindermotorcycleiz:

• transit: 4-7 Days
• cost: $0.00
• type: Fixed
• class: Standard
• service: FedEx Ground / FedEx Home Delivery
• carrier: FedEx

payments cylindermotorcycleiz:

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

seller cylindermotorcycleiz:

• rating: 99.1%
• city: Elk Grove Village, Illinois
• # reviews: 4036

general cylindermotorcycleiz:

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

offer cylindermotorcycleiz:

• best offers: True
• availability: In Stock
• sold: 0
• options: Ship-to-home
• started: September 18, 2025

returns cylindermotorcycleiz:

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

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