BFO HI8BJY Cylinder Head ATC70 70CC 72CM3

( Brand: Bfo ), ( Manufacturer Part Number: HI8BJY ), ( 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 New Cylinder Head Honda 70cc fits CRF70 XR70 CT70 C70 TRX70 S65

Introducing the BFO Hi8BJY Cylinder Head, a high-performance upgrade for your Honda CRF70, XR70, CT70, C70, ATC70, TRX70, or any other Honda engine with a 70cc or 72cm3 displacement. This cylinder head is meticulously engineered to deliver increased power, improved throttle response, and enhanced durability compared to the OEM part.

The BFO Hi8BJY Cylinder Head boasts several advanced design features. It comes with a high-strength forged aluminum cylinder head with oversized intake and exhaust ports for optimal gas flow. The larger ports ensure a more efficient combustion process, resulting in more power and torque.

This cylinder head also features a redesigned combustion chamber with a more aggressive camshaft profile. The improved cam profile optimizes valve timing and duration, allowing for better engine breathing and increased power output. The combustion chamber is precision-machined for a perfect seal, ensuring efficient combustion and reduced engine wear.

The BFO Hi8BJY Cylinder Head also comes with upgraded valves and springs. The valves are made from high-quality steel for maximum durability, while the springs are designed to provide optimal valve control at various RPM levels. These upgraded valves and springs help ensure consistent engine performance and reduce the likelihood of valve bounce, common in stock cylinder heads.

The cylinder head also features a redesigned cooling system, with larger and more efficient cooling fins. These fins help dissipate heat more effectively, keeping the engine running cooler and more efficiently. The cooling system also includes a high-performance water pump, ensuring consistent cooling performance even under heavy load conditions.

The BFO Hi8BJY Cylinder Head is also designed for easy installation. It comes fully assembled and includes all necessary gaskets and hardware for a hassle-free installation process. The cylinder head is also compatible with most aftermarket performance parts, allowing for further customization and power gains.

In summary, the BFO Hi8BJY Cylinder Head is an excellent upgrade for Honda CRF70, XR70, CT70, C70, ATC70, TRX70, or any other Honda engine with a 70cc or 72cm3 displacement. With its high-strength forged aluminum construction, oversized intake and exhaust ports, redesigned combustion chamber, upgraded valves and springs, and efficient cooling system, this cylinder head delivers increased power, improved throttle response, and enhanced durability.

Buying a BFO Hi8BJY cylinder head for a Honda CRF70, XR70, CT70, C70, ATC70, TRX70, S65, 70cc, or 72cm3 motorcycle can have several pros and cons. Here's a detailed analysis to help you make an informed decision.

1. Performance: A BFO Hi8BJY cylinder head is known for its improved performance. It offers increased power and torque, making your bike more responsive and faster.

2. Durability: This cylinder head is made with high-quality materials and advanced manufacturing techniques. It is designed to withstand the rigors of off-road riding, ensuring long-lasting performance.

3. Compatibility: The BFO Hi8BJY cylinder head is specifically designed for Honda CRF70 and its variants. It is a direct replacement for the stock cylinder head, making installation easy and hassle-free.

4. Improved Cooling: The BFO Hi8BJY cylinder head features improved cooling capabilities. It has larger cooling fins and better airflow, which helps keep the engine running cooler and more efficiently.

1. Cost: A BFO Hi8BJY cylinder head can be quite expensive. It is a premium aftermarket part, and the cost may be a deterrent for some riders.

2. Installation: Installing a new cylinder head can be a complex and time-consuming process. It requires specialized tools and mechanical expertise.

3. Risk: Installing a new cylinder head involves some level of risk. There is always a chance that something could go wrong during installation, which could result in damage to the engine or other components.

A BFO Hi8BJY cylinder head is an excellent upgrade for any Honda CRF70 or its variants. It offers improved performance, durability, and cooling capabilities. However, it comes with a higher cost, installation complexity, and some level of risk. If you are comfortable with the installation process and are willing to invest in the performance upgrade, then a BFO Hi8BJY cylinder head is a worthwhile investment.

If you are looking for a performance upgrade for your Honda CRF70 or its variants and have the mechanical expertise and budget for it, then a BFO Hi8BJY cylinder head is an excellent choice. However, if you are not comfortable with the installation process or cannot justify the cost, then it may be best to consider other performance upgrades or wait until you have the necessary resources to make the switch.

Details:

NEW CYLINDER HEAD FITS FOR HONDA CRF70 XR70 CT70 C70 ATC70 TRX70 S65 70CC 72CM3. Compare the Combustion Chamber Size shown below, to your current head. Cylinder Head for Honda CRF70 XR70 CT70 C70 ATC70 TRX70 S65 50cc Large Bore / 70cc Small. For Honda TRX70.

This head will only work with DOMED pistons. This head will only work with FLAT TOP pistons. Guaranteed Fitment Always the correct part. For Honda S65.

part #: hi8bjy prices

• $19.99-$47.59

specifications cylindermotorcycleiz:

• for models: Crf70, Xr70, Ct70, C70, Trx70, S65
• for makes: Honda
• brand: Bfo
• mpn: Hi8bjy
• 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:

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

seller cylindermotorcycleiz:

• rating: 98.2%
• city: Rowland height, California
• # reviews: 1431

returns cylindermotorcycleiz:

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

shipping cylindermotorcycleiz:

• cost: $0.00
• class: Standard
• type: Fixed
• carrier: FedEx
• transit: 4-8 Days
• service: FedEx Ground / FedEx Home Delivery

offer cylindermotorcycleiz:

• availability: In Stock
• options: Ship-to-home
• best offers: True
• sold: 0
• started: November 11, 2025

payments cylindermotorcycleiz:

• other
• credit card: Discover
• wallet: Paypal

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