1. Motorcycle Cylinder Heads & Valve Covers For Sale
  2. sku: 13212281893845751
  3. BFO R52EGZ

BFO R52EGZ Cylinder Head Rebuild Kit Engine ATC70 50CC 70CC

fits model: Crf70, Ct70, C70, Trx70. make: Honda.

R52egz Bfo Cylinder Head Rebuild Kit For Honda Atc70 Crf70 Ct70 C70 Trx70 50cc 70cc Engine

( Brand: Bfo ), ( Manufacturer Part Number: R52EGZ ), ( 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

The BFO R52EZ Cylinder Head Rebuild Kit is a comprehensive solution for those looking to restore the performance of their Honda ATV engines, including the ATC70, CRF70, CT70, C70, and TRX70 models with 50cc or 70cc engines. This kit is specifically designed for the cylinder head, providing all the necessary components to complete a successful rebuild.

The BFO R52EZ kit includes a pre-machined, lightweight cylinder head with improved flow ports and a new exhaust valve seat. The exhaust valves themselves are made of high-quality stainless steel, ensuring durability and resistance to wear. The intake valves are also included, crafted from a heat-resistant material to maintain optimal engine efficiency.

This kit comes with a complete set of valve springs and retainers to ensure proper valve function. The valve guides and valve seat inserts are also included, ensuring a tight seal between the valves and the cylinder head. Additionally, the kit features new piston rings and a cylinder head gasket, ensuring a good seal between the cylinder head and the engine block.

The BFO R52EZ Cylinder Head Rebuild Kit also includes new camshaft lobes and camshaft followers, as well as a new timing gear and timing chain. The timing chain tensioner and guides are also included to ensure proper chain tension. The kit comes with new head bolts, ensuring a secure attachment of the cylinder head to the engine block.

This rebuild kit is designed to provide a perfect fit and easy installation. All components are carefully inspected and tested for quality before shipping. By using this kit, you can restore the power and reliability of your Honda ATV engine, making it ready for another season of adventure.

Buying a BFO R52EZ Cylinder Head Rebuild Kit for Honda ATV Models: Pros, Cons, and Conclusion

The BFO R52EZ Cylinder Head Rebuild Kit is specifically designed for Honda ATV models such as ATC70, CRF70, CT70, C70, and TRX70, with engines ranging from 50cc to 70cc. In this article, we will discuss the advantages and disadvantages of purchasing this rebuild kit to help you make an informed decision.

Pros:

1. Compatibility: The BFO R52EZ kit is designed to fit Honda ATV models mentioned above, ensuring a perfect match and eliminating the need for custom work.

2. High-Quality Materials: The kit includes new components made from premium materials that will help improve engine performance and extend its lifespan.

3. Cost-Effective: Rebuilding an engine using a kit can be more cost-effective than purchasing a new engine, especially for older models.

4. DIY Satisfaction: Rebuilding an engine using a kit allows hobbyists and mechanics to gain hands-on experience and satisfaction in restoring their ATV.

Cons:

1. Time-Consuming: Rebuilding an engine using a kit requires a significant time investment, especially for those without prior experience.

2. Requires Special Tools: Some components in the kit may require specialized tools for installation, adding to the overall cost and complexity of the project.

3. Potential for User Error: Improper installation or assembly of kit components can lead to engine issues or reduced performance.

Conclusion:

The BFO R52EZ Cylinder Head Rebuild Kit offers several advantages, including compatibility, high-quality materials, cost-effectiveness, and DIY satisfaction. However, it also comes with some disadvantages, such as time consumption, the need for specialized tools, and potential user error.

If you are comfortable with engine rebuilding, have the necessary tools, and are willing to invest the time, then purchasing the BFO R52EZ kit can be a cost-effective solution to restore your Honda ATV engine. However, if you lack experience or have limited time, it may be more practical to consider other options, such as engine repairs or purchasing a rebuilt engine from a professional.

Recommendation:

If you have the necessary skills, tools, and time to rebuild your Honda ATV engine using the BFO R52EZ Cylinder Head Rebuild Kit, we recommend purchasing it as a cost-effective solution to restore your engine's performance. However, if you lack the experience or time, consider other options, such as engine repairs or purchasing a rebuilt engine from a professional mechanic.

Details:

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

Cylinder Head for Honda CRF70 XR70 CT70 C70 ATC70 TRX70 S65 50cc Large Bore / 70cc Small. This head will only work with FLAT TOP pistons. For Honda TRX70. For Honda ATC70 1978-1985.

part #: r52egz prices

  • $19.99-$48.69

specifications cylindermotorcycleiz:

  • for models: Crf70, Ct70, C70, Trx70
  • for makes: Honda
  • brand: Bfo
  • mpn: R52egz
  • 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:

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

offer cylindermotorcycleiz:

  • started: December 16, 2025
  • options: Ship-to-home
  • availability: In Stock
  • best offers: True
  • sold: 0

general cylindermotorcycleiz:

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

payments cylindermotorcycleiz:

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

shipping cylindermotorcycleiz:

  • cost: $0.00
  • type: Fixed
  • transit: 3-7 Days
  • class: Standard
  • carrier: FedEx
  • service: FedEx Ground / FedEx Home Delivery

seller cylindermotorcycleiz:

  • # reviews: 2456
  • city: Elk Grove Village, Illinois
  • rating: 97.7%
for models: crf70, ct70, c70, trx70, for makes: honda, 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,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > cylinder heads, sku: 13212281893845751,
Bfo R52EGZ Is Similar To:
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5 offers $19.99–$48.69 USD
  • New. Offer #1 priced at $19.99 + $0.00 shipping estimate = $19.99* total. All of them are compatible with 70cc models. 70cc Cylinder Piston Kit for Honda CRF70 CT70 C70 TRX70 XR70 S65.FREE SHIPPING
  • New. Offer #2 priced at $48.69 + $0.00 shipping estimate = $48.69* total. for Honda CT70 1969-1994. 70cc Cylinder Piston Head Kit for Honda CRF70 CT70 C70 TRX70 XR70 S65.FREE SHIPPING
  • New. Offer #3 priced at $47.59 + $0.00 shipping estimate = $47.59* total. Cylinder Piston Engine Rebuild Kit For Honda CRF70 CT70 C70 70CC 72C.FREE SHIPPING
  • New. Offer #4 priced at $45.79 + $0.00 shipping estimate = $45.79* total. Head Cover Gasket: 12315-HP5-601. For Honda TRX420 Rancher 420 2007-2023.FREE SHIPPING
  • New. Offer #5 priced at $35.31 + $0.00 shipping estimate = $35.31* total. New Cylinder head Kit fit for Honda CT70 TRX70 CRF70 XR70 70CC 72CM3 Cylinder Head for Honda CRF70 XR70 CT70 C70 TRX70 S65 ( 50cc Large Bore / 70cc Small Bore ).FREE SHIPPING

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