BFO 5E1ATL Cylinder Head Kit ATC70 70CC 50CC

( Brand: Bfo ), ( Manufacturer Part Number: 5E1ATL ), ( 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 Kit Fit Honda 70cc 50cc fits CRF70 XR70 CT70 C70 TRX70 S65

Introducing the BFO 5E1ATL Cylinder Head Kit, specifically designed for various Honda CRF models including the CRF70, XR70, CT70, C70, ATC70, TRX70, and those with the S65 70cc and 50cc engines. This cylinder head kit is an excellent upgrade for your Honda off-road motorcycle, enhancing performance and durability.

The BFO 5E1ATL Cylinder Head Kit boasts a number of key features. It includes a high-performance cylinder head, which is machined from premium aluminum alloy for optimal heat dissipation and reduced weight. The kit also includes new pistons, rings, and gaskets, ensuring a proper fit and seal for improved engine efficiency.

The cylinder head kit comes with a set of high-performance exhaust valves, which are designed to maximize airflow and power output. These valves are made from durable materials, ensuring longevity and reliability. The kit also includes new exhaust valve guides and seats, ensuring a precise fit and optimal sealing.

The intake side of the cylinder head kit features new intake valves, which are designed to improve breathing and power delivery. These intake valves are made from a high-quality material that ensures a long service life. The kit also includes new intake valve guides and seats, ensuring a proper fit and optimal sealing.

The BFO 5E1ATL Cylinder Head Kit is easy to install, with all necessary hardware included in the package. The kit also comes with detailed instructions to ensure a smooth installation process. This cylinder head kit is an excellent investment for any Honda CRF owner looking to enhance the performance and longevity of their off-road motorcycle.

In summary, the BFO 5E1ATL Cylinder Head Kit is a high-quality upgrade for various Honda CRF models. It includes a high-performance cylinder head, new pistons, rings, gaskets, high-performance exhaust valves, intake valves, and all necessary hardware for a straightforward installation process. This kit is designed to maximize power output, improve engine efficiency, and enhance the overall performance and longevity of your Honda CRF.

Buying a BFO 5E1 ATL cylinder head kit for Honda CRF70, XR70, CT70, C70, ATC70, TRX70, S65, and 70cc/50cc models can be a significant investment for motorcycle enthusiasts looking to upgrade their engines. Here are some pros and cons that can help you make an informed decision.

1. Improved Performance: The BFO 5E1 ATL cylinder head kit is designed to enhance the overall performance of the engine. It comes with high-performance pistons, rings, and cylinder head, which can provide better combustion efficiency, increased power, and improved throttle response.

2. Durability: The BFO 5E1 ATL cylinder head kit is made of high-quality materials that can withstand the rigors of off-road riding. It is designed to last longer than the stock parts, reducing the need for frequent replacements.

3. Customization: The BFO 5E1 ATL cylinder head kit offers an opportunity to customize the engine to your specific riding style and preferences. You can choose from different piston sizes and cam profiles to suit your needs.

4. Increased Power Band: The BFO 5E1 ATL cylinder head kit can help increase the power band of your engine, allowing you to have more power in the mid-range and top-end.

1. Cost: The BFO 5E1 ATL cylinder head kit is a significant investment, and the cost can be a deterrent for some motorcycle owners.

2. Installation: Installing the BFO 5E1 ATL cylinder head kit can be a complex process, and it may require the assistance of a professional mechanic.

3. Potential Power Loss: In some cases, the power gains from the BFO 5E1 ATL cylinder head kit may not be as significant as advertised, and you may experience a power loss in certain RPM ranges.

4. Compatibility: The BFO 5E1 ATL cylinder head kit may not be compatible with all Honda CRF70, XR70, CT70, C70, ATC70, TRX70, S65, and 70cc/50cc models, so it's essential to verify compatibility before making a purchase.

The BFO 5E1 ATL cylinder head kit can be an excellent investment for Honda CRF70, XR70, CT70, C70, ATC70, TRX70, S65, and 70cc/50cc motorcycle owners looking to improve the performance of their engines. However, the significant cost and complex installation process can be deterrents for some. If you are an experienced mechanic and are willing to invest in a high-performance engine upgrade, the BFO 5E1 ATL cylinder head kit is an excellent option.

If you're considering buying the BFO 5E1 ATL cylinder head kit, make sure to verify compatibility with your specific Honda CRF70, XR70, CT70, C70, ATC70, TRX70, S65, and 70cc/50cc model. Additionally, consider seeking professional installation assistance to ensure proper installation and optimal performance gains. Finally, be prepared for the significant investment and potential power loss in certain RPM ranges.

Details:

Fast Shipping. For Honda TRX70. This head will only work with DOMED pistons. For Honda S65.

This head will only work with FLAT TOP pistons. Telephone number. Guaranteed, Fitment Always the correct part. 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. PRODUCT DISPLAY Cylinder Head Kit Fit for Honda CRF70 XR70 CT70 C70 ATC70 TRX70 S65 70cc 50cc.

part #: 5e1atl prices

• $35.31-$47.59

specifications cylindermotorcycleiz:

• for models: Crf70, Xr70, Ct70, C70, Trx70, S65
• for makes: Honda
• brand: Bfo
• mpn: 5e1atl
• 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

general cylindermotorcycleiz:

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

seller cylindermotorcycleiz:

• # reviews: 3043
• rating: 99.5%
• city: Elk Grove Village, Illinois

payments cylindermotorcycleiz:

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

returns cylindermotorcycleiz:

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

shipping cylindermotorcycleiz:

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

offer cylindermotorcycleiz:

• best offers: True
• started: April 12, 2026
• availability: In Stock
• sold: 0
• options: Ship-to-home

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