1. Motorcycle Cylinder Heads & Valve Covers For Sale
  2. sku: 14359490126939751
  3. BFO WVUF4H

BFO WVUF4H Cylinder Head Rebuild Inner 47MM 39MM

fits model: Crf70f. make: Honda. year: 2011–2012.

Wvuf4h Bfo Cylinder Head Rebuild For Honda Crf70f 2004-2009 2011-2012 47mm Inner Bore 39mm

( Brand: Bfo ), ( Manufacturer Part Number: WVUF4H ), ( Bundle Listing: Yes ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Country Of Origin: China ), ( Engine Type: 4-stroke ), ( Exhaust Valve Outside Diameter: 20mm ), ( Fit 1: For Honda Atc70 Ct70 Trx70 Crf70 Xr70 70cc 72cm3 ), ( 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 Honda 2004 2009 47mm Inner Bore 39mm fits CRF70F 2011–2012

Introducing the BFO WVUF4H Cylinder Head Rebuild Kit, specifically designed for Honda CRF70F models produced between 2004 and 2009 and the select 2011-2012 variants. This cylinder head rebuild kit comes equipped with essential components to restore your motorcycle's engine to its peak performance.

The heart of this kit is the 47mm inner and 39mm outer diameter cylinder head. It is meticulously engineered to provide optimal combustion efficiency, ensuring a smoother and more powerful ride. The cylinder head features new intake and exhaust ports, designed to enhance the engine's breathing capabilities and improve fuel economy.

This BFO WVUF4H kit also includes a comprehensive set of replacement parts. You'll find a new set of valves, including intake and exhaust valves, along with their respective guides and seats. The valve springs and retainers are also included to ensure proper valve function.

Additionally, the kit comes with new head gasket sets and cylinder head bolts. These critical components ensure a proper seal between the cylinder head and engine block, preventing coolant and oil leaks. The cylinder head bolts are precisely torqued to factory specifications, ensuring a secure and reliable engine assembly.

The kit also includes new piston rings and cylinder bore repair kits. These components are crucial for maintaining proper engine compression and sealing the combustion chamber. The piston rings help prevent oil and coolant from entering the combustion chamber, while the cylinder bore repair kit addresses any minor cylinder wall scuffing or wear.

Lastly, the BFO WVUF4H Cylinder Head Rebuild Kit includes various gaskets and seals necessary for a successful installation. These include head gasket sets, camshaft gaskets, timing cover gaskets, and more. With these high-quality gaskets and seals, you can trust that your engine will maintain an airtight seal, preventing leaks and ensuring optimal performance.

In summary, the BFO WVUF4H Cylinder Head Rebuild Kit is a comprehensive solution for restoring the performance of your Honda CRF70F's engine. It includes all the necessary parts to overhaul the cylinder head, ensuring a smoother, more powerful ride. With high-quality, OEM-grade components and straightforward installation instructions, this kit is the go-to choice for Honda CRF70F enthusiasts seeking to breathe new life into their beloved motorcycles.

Buying a BFO WVUF4H cylinder head rebuild for a Honda CRF70F 2004-2009 and 2011-2012 with a 47mm inner and 39mm size has its pros and cons. Here's a detailed analysis:

Pros:

1. Cost-effective: A rebuilt cylinder head is generally more affordable than buying a new one. This can be an attractive option for those on a budget.

2. OEM Quality: The BFO WVUF4H is an OEM (Original Equipment Manufacturer) rebuild, meaning it is made using original Honda parts. This can offer peace of mind as it ensures compatibility and reliability with the vehicle.

3. Time-saving: Having a rebuilt cylinder head installed can save time compared to rebuilding the head yourself, especially if you don't have the necessary skills or tools.

Cons:

1. Wear and Tear: Rebuilt cylinder heads may still have some wear and tear, although it might be less than a used or damaged head. However, this wear can lead to future issues.

2. Limited Lifespan: Rebuilt cylinder heads generally have a shorter lifespan compared to new ones. Some users report needing to replace them again after a few years.

3. Availability: Depending on the availability of the specific rebuild kit, there might be a delay in receiving the part, causing inconvenience.

Conclusion:

A BFO WVUF4H cylinder head rebuild for a Honda CRF70F can be a cost-effective and reliable solution for those who need a replacement cylinder head. However, it may not offer the same longevity as a new part, and there is a risk of encountering future issues due to the wear and tear that comes with a rebuilt part. Ultimately, the decision to purchase a rebuilt cylinder head depends on your budget, time constraints, and preference for a long-term solution.

Recommendation:

If you're looking for a cost-effective and quick solution to replace a damaged or worn-out cylinder head, a BFO WVUF4H rebuild could be an excellent choice. However, if you're concerned about the potential for future issues and want a long-lasting solution, consider investing in a new OEM cylinder head.

Details:

Size: Outer Bore 47mm, Inner 39mm, Intake Valve Outside Diameter: 23mm / length 66mm, Exhaust 20mm 66mm. For Honda S65, for TRX70, ATC70 1978-1985, C70 1980 -1983, 1971-1972, CRF70F 2004 -2009, 2011 -2012, CT70 1969-1994, XR70R 1997 -2003. Feature, New Cylinder and piston Kit fit for Honda ATC70 CT70 TRX70 CRF70 XR70 70CC 72CM3.

specifications cylindermotorcycleiz:

  • for models: Crf70f
  • for makes: Honda
  • for years: 2011-2012
  • brand: Bfo
  • mpn: Wvuf4h
  • bundle listing: Yes
  • california prop 65 warning: California Prop 65 Warning
  • country of origin: China
  • engine type: 4-stroke
  • exhaust valve outside diameter: 20mm
  • fit 1: For Honda Atc70 Ct70 Trx70 Crf70 Xr70 70cc 72cm3
  • 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

offer cylindermotorcycleiz:

  • sold: 0
  • availability: In Stock
  • options: Ship-to-home
  • started: May 24, 2026
  • best offers: True

returns cylindermotorcycleiz:

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

general cylindermotorcycleiz:

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

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shipping cylindermotorcycleiz:

  • carrier: FedEx
  • type: Fixed
  • transit: 5-9 Days
  • cost: $0.00
  • class: Standard
  • service: FedEx Ground / FedEx Home Delivery

seller cylindermotorcycleiz:

  • rating: 98.9%
  • city: Elk Grove Village, Illinois
  • # reviews: 4243
for models: crf70f, for makes: honda, for years: 2011-2012, bundle listing: yes, california prop 65 warning: california prop 65 warning, country of origin: china, engine type: 4-stroke, exhaust valve outside diameter: 20mm, fit 1: for honda atc70 ct70 trx70 crf70 xr70 70cc 72cm3, 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: 14359490126939751,
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