1. Motorcycle Cylinder Heads & Valve Covers For Sale
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  3. MAXPEEDINGRODS 30Z5W8

MAXPEEDINGRODS 30Z5W8 Cylinder Head Kit Performance 70CC 50CC

fits model: Xr70, Ct70, C70, Crf. make: Honda. year: 1970.

30z5w8 Maxpeedingrods Cylinder Head Complete Kit For Honda Crf 70 Xr70 Ct70 C70 70cc 50cc Performance

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: 30Z5W8 ), ( 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 MAXPEEDINGRODS Cylinder Head Complete Kit Honda 50cc Performance fits XR70 CT70 C70 CRF 1970

Introducing the Maxpeedingrods 30Z5W8 Cylinder Head Kit, specifically designed for Honda CRF 70, XR70, CT70, C70, and 70cc/50cc models. This performance upgrade is a must-have for riders seeking enhanced power and improved engine efficiency.

The 30Z5W8 Cylinder Head Kit comes with a number of upgraded components. The cylinder head itself features a revised combustion chamber design, which provides better air and fuel mixture for a more efficient combustion process. The head also includes larger intake and exhaust valves, allowing for increased gas flow in and out of the cylinders. This results in better engine breathing and a more potent power output.

The kit also includes a high-performance camshaft, which has been specifically designed to work in harmony with the upgraded cylinder head. The camshaft provides improved valve lift and duration, which in turn leads to a more powerfully exhaled exhaust gas and a more efficiently drawn in intake charge. This results in a noticeable increase in horsepower and torque.

Additionally, the 30Z5W8 Cylinder Head Kit comes with a set of lightweight, high-strength titanium valves. These valves reduce the weight of the valvetrain, allowing the engine to rev more freely and with less mechanical loss. The titanium valves also offer superior heat resistance, enabling the engine to maintain optimal operating temperatures for extended periods of time.

The kit is also compatible with most aftermarket racing carburetors and intake systems, allowing for further tuning and customization. The installation process is relatively straightforward, with most upgrades able to be completed in a weekend with basic hand tools and some mechanical know-how.

In summary, the Maxpeedingrods 30Z5W8 Cylinder Head Kit is an excellent investment for riders looking to extract maximum performance from their Honda CRF 70, XR70, CT70, C70, or 70cc/50cc model. With its upgraded cylinder head, high-performance camshaft, and lightweight titanium valves, this kit provides a significant power boost while also improving engine efficiency and reliability.

The Maxxispedingrods 30z5w8 cylinder head kit is a popular aftermarket performance upgrade for Honda CRF 70, XR70, CT70, C70, and 70cc/50cc models. This kit is designed to provide better engine performance, power, and improved cooling. Here are some pros and cons to help you make an informed decision about purchasing this cylinder head kit.

Pros:

1. Increased horsepower and torque: The 30z5w8 cylinder head kit is designed to provide better airflow and improved combustion, resulting in increased horsepower and torque.

2. Improved cooling: The kit includes a high-performance cooling system that helps to keep the engine running cooler, reducing the risk of overheating and improving overall engine performance.

3. Enhanced durability: The cylinder head kit is made from high-quality materials that are designed to withstand the rigors of off-road riding, providing enhanced durability and longevity.

4. Better fuel efficiency: The increased engine performance and improved combustion efficiency can lead to better fuel economy, helping to save you money on fuel costs over time.

5. Improved throttle response: The cylinder head kit provides improved throttle response, allowing for faster acceleration and better overall performance.

Cons:

1. Cost: The Maxxispedingrods 30z5w8 cylinder head kit can be quite expensive, which may be a deterrent for some buyers.

2. Installation complexity: Installing the cylinder head kit can be a complex process and may require specialized tools and knowledge. It may be necessary to hire a professional to install the kit, which can add to the overall cost.

3. Potential for increased noise: The cylinder head kit may result in increased engine noise, which may not be desirable for all riders.

4. Potential for increased emissions: The increased engine performance may result in increased emissions, which may not be desirable for those who are concerned about the environmental impact of their riding.

In conclusion, the Maxxispedingrods 30z5w8 cylinder head kit offers significant performance benefits for Honda CRF 70, XR70, CT70, C70, and 70cc/50cc models. However, it also comes with some drawbacks, including cost, installation complexity, increased noise, and potential for increased emissions. Ultimately, the decision to purchase this kit depends on your individual priorities and riding style. If you value improved performance and durability and are willing to invest the time and money required for installation, then this kit may be a worthwhile investment. However, if you are on a tight budget or prefer a quieter, more eco-friendly riding experience, then this kit may not be the best choice for you. It is important to carefully consider the pros and cons before making a decision.

Details:

For Honda TRX70. We established cooperation's with EM tron, Mote, LINK, Cartel, Him, etc. Compare the Combustion Chamber Size shown below, to your current head. For Honda ATC70 1978-1985.

Cylinder Head for Honda CRF70 XR70 CT70 C70 ATC70 TRX70 S65 50cc Large Bore / 70cc Small. This head will only work with DOMED pistons. MaXpeedingrods has a longstanding commitment to the research of ECU, engine, gearbox and vehicle performance electronic calibration. For Honda S65.

MaXpeedingrods always follow the development concept that Success derives from devotion and happiness comes sharing to make contributes domestic overseas car tuning enthusiasts global racing culture by excellent products service. This head will only work with FLAT TOP pistons.

specifications cylindermotorcycleiz:

  • for models: Xr70, Ct70, C70, Crf
  • for makes: Honda
  • for years: 1970
  • brand: Maxpeedingrods
  • mpn: 30z5w8
  • 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

offer cylindermotorcycleiz:

  • sold: 0
  • best offers: True
  • availability: In Stock
  • quantity: 10
  • started: September 11, 2025
  • options: Ship-to-home

returns cylindermotorcycleiz:

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

shipping cylindermotorcycleiz:

  • type: Fixed
  • transit: 4-7 Days
  • class: Standard
  • cost: $0.00
  • carrier: FedEx
  • service: FedEx Ground / FedEx Home Delivery

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seller cylindermotorcycleiz:

  • # reviews: 26116
  • city: Elk Grove Village, Illinois
  • rating: 99.0%

general cylindermotorcycleiz:

  • condition: New
  • Motorcycle Scooter Parts Accessories > Engines Engine Parts > Cylinder Heads
for models: xr70, ct70, c70, crf, for makes: honda, for years: 1970, 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: 12479391158518682,
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