TRIUMPH Cylinder Head 70-4552-RB 6T E4552

( Manufacturer Part Number: 70-4552 ), ( Type: Cylinder Head ), ( Engine Type: 4-stroke ), ( Oe/oem Part Number: E4552 )

Review TRIUMPH 6t Rebuilt Cylinder Head Complete fits TR6 650

Triumph 70-4552/70-4552-RB Cylinder Head for Triumph 650 6T and TR6

The Triumph 70-4552/70-4552-RB Cylinder Head is a premium replacement component designed specifically for Triumph 650 6T and TR6 motorcycles. This cylinder head is an essential upgrade for any Triumph enthusiast seeking to restore the performance of their classic motorcycle or enhance its durability.

This cylinder head is manufactured with utmost precision using high-quality materials to ensure a perfect fit and optimal engine performance. Each component undergoes rigorous quality checks to guarantee that it meets the stringent standards set by Triumph.

The Triumph 70-4552/70-4552-RB Cylinder Head is designed with six cylinders and features an inlet manifold with four ports and an exhaust manifold with four ports. Its combustion chamber design is optimized for efficient fuel-air mixture and even combustion, leading to improved power output and torque.

This cylinder head comes with new valves and valve guides, ensuring a smooth operation and reduced wear. The valves are made from durable material to withstand the rigors of high-performance riding, while the valve guides offer precise sealing and minimal friction.

The Triumph 70-4552/70-4552-RB Cylinder Head is also equipped with new piston rings and cylinder liners, which help improve the sealing of the combustion chamber and reduce the amount of blow-by gases. This results in better engine efficiency, improved fuel economy, and reduced exhaust emissions.

The cylinder head also comes with new gaskets and head bolts, ensuring a secure and leak-free installation. The gaskets are made from high-temperature materials to maintain their sealing properties even under extreme conditions, while the head bolts are torqued to the correct specifications for optimal engine performance and longevity.

In conclusion, the Triumph 70-4552/70-4552-RB Cylinder Head is an essential upgrade for any Triumph 650 6T or TR6 motorcycle. Its precise manufacturing, durable materials, and optimized design make it an excellent choice for enthusiasts seeking to restore their classic motorcycle's performance or enhance its durability. With this premium cylinder head, you can enjoy the thrill of riding a Triumph motorcycle while having peace of mind knowing that you have the best components under the hood.

The Triumph 70-4552, also known as the 650 6T Cylinder Head E4552, is a popular aftermarket cylinder head for Triumph motorcycles. This head is designed for use in 650 cc twin-cylinder engines and is known for its high-performance capabilities. Here are some pros and cons to consider before making a purchase:

1. High Power Output: This cylinder head is known for its ability to produce high power output. It can support up to 60 horsepower, making it an excellent choice for riders looking to boost the performance of their Triumph motorcycle.

2. Improved Cooling: The Triumph 70-4552 features improved cooling capabilities. It comes with larger cooling fins and a more efficient cooling system, which helps to keep the engine running cooler and more efficiently.

3. Durability: This cylinder head is built to last. It is made from high-quality materials and is designed to withstand the rigors of high-performance riding.

4. Easy Installation: The cylinder head is relatively easy to install, and many riders report that they were able to do it themselves with the help of some basic tools and instructions.

1. Cost: The Triumph 70-4552 is not a cheap upgrade. It can be quite expensive, especially when compared to other aftermarket cylinder heads.

2. Complex Installation: While the installation is relatively straightforward, it can still be a complex process. It requires a significant amount of time and effort, and some riders may prefer to pay a professional to do it for them.

3. Compatibility: This cylinder head is specifically designed for use in 650 cc Triumph twin-cylinder engines. It may not be compatible with other engine sizes or types, so be sure to check the compatibility before making a purchase.

4. Potential for Increased Emissions: The high-performance capabilities of this cylinder head can lead to increased emissions. Riders in areas with strict emissions regulations may need to take additional steps to ensure that their motorcycle remains compliant.

In conclusion, the Triumph 70-4552 is a high-performance cylinder head that offers improved cooling, durability, and power output. However, it is also a costly upgrade that requires a significant amount of time and effort to install. Additionally, it may not be compatible with all engine sizes or types, and it can lead to increased emissions.

If you are a serious performance enthusiast and are willing to invest the time, money, and effort into this upgrade, then the Triumph 70-4552 may be a worthwhile investment. However, if you are looking for a more budget-friendly or less complex upgrade, there may be other options to consider. Ultimately, the decision is up to you and your specific needs and preferences.

Details:

Not sure if this is correct for your bike. Need a later TR6 or Bonneville head. 70-4552-RB - Triumph 650 6T TR6 Rebuilt Cylinder Head Complete E4552: 9 Stud 1965 1964 date stamp. Good exhaust threads original stubs included, no cracks, broken fins, as nice you'll find vs NOS This head will bolt on all 1963-66 unit 650 engines and can also be fitted to 1967-72 if you replace the tappet guide blocks, push rod tubes seals with early ones.

part #: 704552 prices

• $159.00-$579.99

specifications cylindermotorcycleiz:

• for models: Tr6, 650
• for makes: Triumph
• mpn: 70-4552
• type: Cylinder Head
• engine type: 4-stroke
• oe/oem part number: E4552

offer cylindermotorcycleiz:

• sold: 0
• best offers: True
• quantity: 1
• availability: In Stock
• options: Ship-to-home
• started: September 24, 2025

payments cylindermotorcycleiz:

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

seller cylindermotorcycleiz:

• # reviews: 6
• city: Broomfield, Colorado
• rating: 100.0%

shipping cylindermotorcycleiz:

• class: Standard
• type: Calculated
• transit: 5-10 Days
• service: USPS Ground Advantage
• cost: $15.84
• carrier: USPS

general cylindermotorcycleiz:

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

returns cylindermotorcycleiz:

• policy: No Returns

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