BFO GN5OET Cylinder Head Rebuild Kit Engine ATC70 50CC 70CC

( Brand: Bfo ), ( Manufacturer Part Number: GN5OET ), ( 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 Rebuild Kit Honda 50cc 70cc Engine fits CRF70 CT70 C70 TRX70

Introducing the BFO GN5OET Cylinder Head Rebuild Kit, specifically designed for Honda ATV models including ATC70, CRF70, CT70, C70, and TRX70 with 50cc and 70cc engines. This comprehensive rebuild kit ensures a hassle-free and cost-effective way to restore your engine to its optimal performance.

The BFO GN5OET Cylinder Head Rebuild Kit comes with an extensive range of high-quality components. The kit includes a new cylinder head gasket, two new piston rings, two new compression rings, two new cylinder piston pins, two new crankshaft piston pins, two new connecting rod bushings, two new camshafts, two new tappets, and two new valves. Each component is meticulously engineered and manufactured to meet or exceed OEM specifications, ensuring a perfect fit and reliable functionality.

The cylinder head gasket is a critical component in the engine's combustion process, and the BFO GN5OET kit includes a new, high-performance gasket that seals the cylinder head to the engine block, preventing any leaks and ensuring efficient engine operation.

The piston rings and compression rings play a crucial role in maintaining the compression and sealing the combustion chamber. The new piston rings and compression rings in the kit provide a tight seal and help improve engine performance and efficiency.

The cylinder piston pins and crankshaft piston pins are essential for connecting the piston to the connecting rod and crankshaft, respectively. The new pins in the kit are made from strong materials to ensure a secure connection and minimize wear and tear.

The connecting rod bushings are responsible for supporting the weight of the piston and connecting rod. The new bushings in the kit improve the engine's overall performance by reducing friction and providing a smoother operation.

The camshafts and tappets are crucial components of the engine's valvetrain system. The new camshafts and tappets in the kit provide improved engine performance, ensuring proper valve timing and optimal engine efficiency.

The valves in the kit are responsible for allowing the intake of air and exhaust gases in and out of the engine, respectively. The new valves ensure a proper seal and improve engine performance and efficiency.

In summary, the BFO GN5OET Cylinder Head Rebuild Kit is a high-quality, comprehensive solution for restoring the performance of Honda ATV engines. Each component in the kit is meticulously engineered and manufactured to meet or exceed OEM specifications, ensuring a perfect fit and reliable functionality. Whether you're looking to restore an old engine or simply maintain your ATV's performance, this kit is an excellent investment.

Buying a BFO GN5OET Cylinder Head Rebuild Kit for Honda ATC/CRF/CT/TRX 50cc-70cc Engines: A Comprehensive Analysis

The BFO GN5OET Cylinder Head Rebuild Kit is designed for Honda ATC, CRF, CT, and TRX 50cc-70cc engines. This kit provides an excellent opportunity for engine rebuilders and DIY enthusiasts to restore their engines to a like-new state. In this analysis, we will discuss the pros and cons of buying this cylinder head rebuild kit.

1. High-quality components: The BFO GN5OET Cylinder Head Rebuild Kit consists of high-quality components that ensure a precise fit and long-lasting performance.

2. Comprehensive kit: The kit includes all the necessary parts for a cylinder head rebuild, minimizing the need for additional purchases.

3. Cost-effective: The cost of the BFO GN5OET Cylinder Head Rebuild Kit is generally lower compared to buying new parts individually.

4. Easy installation: The kit's components are designed to be easily installed, making the rebuild process more accessible for both professionals and DIY enthusiasts.

5. Improved engine performance: A rebuilt cylinder head can lead to significant improvements in engine performance, including increased power and fuel efficiency.

1. Requires some mechanical skills: While the installation process is relatively straightforward, some mechanical skills are still required to complete the rebuild.

2. Potential for errors: Improper installation of any component could result in engine damage or reduced performance.

3. Time-consuming: The cylinder head rebuild process can be time-consuming, especially for those without prior experience.

4. Risk of damaging original parts: During the rebuild process, there is a risk of damaging original parts if not handled with care.

The BFO GN5OET Cylinder Head Rebuild Kit offers several advantages, including high-quality components, cost-effectiveness, and improved engine performance. However, it also requires some mechanical skills and the potential for errors exists. Ultimately, the decision to buy this kit depends on your comfort level with engine rebuilds and your willingness to invest time and effort into the process.

If you have the mechanical skills and are willing to dedicate the necessary time and effort, the BFO GN5OET Cylinder Head Rebuild Kit is an excellent choice for restoring your Honda ATC, CRF, CT, or TRX 50cc-70cc engine to a like-new state. However, if you lack the confidence or time to complete the rebuild, it may be worth considering professional engine rebuilding services or purchasing a new engine instead.

Details:

This head will only work with FLAT TOP pistons. Compare the Combustion Chamber Size shown below, to your current head. For Honda S65. This head will only work with DOMED pistons.

For Honda TRX70. For Honda ATC70 1978-1985. Cylinder Head for Honda CRF70 XR70 CT70 C70 ATC70 TRX70 S65 50cc Large Bore / 70cc Small.

part #: gn5oet prices

• $19.99-$47.59

specifications cylindermotorcycleiz:

• for models: Crf70, Ct70, C70, Trx70
• for makes: Honda
• brand: Bfo
• mpn: Gn5oet
• 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:

• # reviews: 3344
• city: Elk Grove Village, Illinois
• rating: 98.5%

payments cylindermotorcycleiz:

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

returns cylindermotorcycleiz:

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

offer cylindermotorcycleiz:

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

shipping cylindermotorcycleiz:

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

general cylindermotorcycleiz:

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

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