BFO MHKF40 Cylinder Head Kit ATC70 70CC 50CC

( Brand: Bfo ), ( Manufacturer Part Number: MHKF40 ), ( 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

BFO MHKF40 Cylinder Head Kit for Honda CRF70, XR70, CT70, C70, TRX70, ATC70 70cc & 50cc

Upgrade your Honda CRF70, XR70, CT70, C70, TRX70, or ATC70 with the BFO MHKF40 Cylinder Head Kit. This top-tier aftermarket solution is designed to enhance your mini-bike's performance and reliability.

The BFO MHKF40 Cylinder Head Kit features a high-performance design, with a forged aluminum cylinder head. This lightweight yet robust component is engineered to withstand the rigors of off-road riding. It boasts an increased compression ratio, allowing your engine to generate more power and torque.

The kit includes a new exhaust valve, a larger intake valve, and a high-performance camshaft. These upgraded components optimize the engine's fuel-air mixture and improve combustion efficiency, resulting in improved power delivery and overall engine performance.

The cylinder head kit also includes new valve guides and seats, ensuring a proper seal between the valves and cylinder head. Additionally, the kit comes with new head gaskets to maintain a reliable seal between the cylinder head and engine block.

The BFO MHKF40 Cylinder Head Kit is a direct fit for Honda CRF70, XR70, CT70, C70, TRX70, and ATC70 models, making installation straightforward and hassle-free. It is compatible with both 70cc and 50cc engines.

By upgrading to the BFO MHKF40 Cylinder Head Kit, you'll not only experience increased power and torque, but you'll also enjoy enhanced engine responsiveness and improved engine durability. This kit is an excellent investment for riders who demand the best performance from their mini-bikes.

- Forged aluminum cylinder head for improved strength and durability

- Increased compression ratio for more power and torque

- High-performance camshaft, intake valve, and exhaust valve for optimized fuel-air mixture and improved combustion efficiency

- New valve guides and seats for a proper seal between the valves and cylinder head

- New head gaskets to maintain a reliable seal between the cylinder head and engine block

- Direct fit for Honda CRF70, XR70, CT70, C70, TRX70, and ATC70 models

- Compatible with both 70cc and 50cc engines

Upgrade your Honda mini-bike with the BFO MHKF40 Cylinder Head Kit and prepare to take your off-road adventures to the next level.

Buying a BFO MHKF40 cylinder head kit for Honda CRF70, XR70, CT70, C70, TRX70, ATC70, and 70cc/50cc models comes with several pros and cons that are essential to consider before making a purchase.

1. Improved Performance: The BFO MHKF40 cylinder head kit is designed to enhance the engine's performance by increasing the power output and improving the overall efficiency of the engine.

2. Durability: This kit is built with high-quality materials, ensuring that it can withstand the rigors of off-road riding and provide long-lasting performance.

3. Easy Installation: The cylinder head kit comes with clear instructions, making it relatively easy to install, even for those without extensive mechanical experience.

4. Cost-Effective: In the long run, this kit can save money by reducing the need for frequent engine repairs or replacements.

1. Initial Cost: The BFO MHKF40 cylinder head kit can be quite expensive, which may deter some buyers.

2. Complex Installation: Although the instructions are clear, the installation process can be time-consuming and may require some technical knowledge.

3. Risk of Damage: Installing the kit incorrectly could result in damage to the engine or other components, leading to additional repair costs.

The BFO MHKF40 cylinder head kit for Honda CRF70, XR70, CT70, C70, TRX70, ATC70, and 70cc/50cc models offers significant performance improvements and durability. However, the initial cost and potential complexity of installation may deter some buyers. If you are looking to enhance the performance of your Honda mini bike and have the necessary skills and resources to install the kit correctly, it could be a worthwhile investment. Alternatively, you may want to consider consulting a professional mechanic to ensure a successful installation.

If you decide to purchase the BFO MHKF40 cylinder head kit, make sure to thoroughly research the installation process and gather all the necessary tools and equipment before beginning the installation. Additionally, consider consulting a professional mechanic if you are unsure about any aspect of the installation process to minimize the risk of damage to your engine or other components.

Details:

Guaranteed Fitment, Always the correct part. Fast Shipping. For Honda TRX70. This head will only work with DOMED pistons.

For Honda ATC70 1978-1985. This head will only work with FLAT TOP pistons. For Honda S65. 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.

part #: mhkf40 prices

• $19.99-$83.25

specifications cylindermotorcycleiz:

• for models: Crf70, Xr70, Ct70, C70, Trx70
• for makes: Honda
• brand: Bfo
• mpn: Mhkf40
• 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

returns cylindermotorcycleiz:

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

payments cylindermotorcycleiz:

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

offer cylindermotorcycleiz:

• best offers: True
• options: Ship-to-home
• availability: In Stock
• sold: 0
• started: October 9, 2025

general cylindermotorcycleiz:

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

shipping cylindermotorcycleiz:

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

seller cylindermotorcycleiz:

• rating: 99.4%
• city: Elk Grove Village, Illinois
• # reviews: 13335

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