fits model: Si, Civic. make: Honda. year: 2006–2011.

( Manufacturer Part Number: RBC-1 ), ( Type: Cylinder Head )
The Honda RBC-1 cylinder head is an essential component for the K20Z3 engine, specifically for the 2006-2011 Honda Civic Si models. This cylinder head is designed to provide exceptional performance and reliability, making it a popular choice among enthusiasts and mechanics alike.
The RBC-1 cylinder head is equipped with four valves per cylinder, which allows for optimal air and fuel intake and exhaust. The valve seats are made of durable material, ensuring a tight seal and reducing the risk of leaks. The cylinder head also features a compact combustion chamber, which allows for a more efficient combustion process and ultimately, improved engine performance.
The RBC-1 cylinder head is cast from high-quality aluminum, which not only makes it lightweight but also helps to dissipate heat effectively. This is crucial for maintaining engine temperature and preventing overheating, especially during high-performance driving. The cylinder head also features a precise multi-angle valve job, which allows for optimal valve lift and duration, further enhancing engine performance.
The RBC-1 cylinder head is compatible with the K20 engine models from 2007 to 2010, making it a versatile option for various Honda Civic Si models. It is important to note that this cylinder head is designed for high-performance applications, and it may require additional modifications to ensure proper fit and function in some vehicles.
In summary, the Honda RBC-1 cylinder head is a high-quality, high-performance component for the K20Z3 engine. Its durable construction, efficient combustion chamber, and precise valve job make it an excellent choice for enthusiasts looking to upgrade their Honda Civic Si engine. However, it is essential to ensure that the cylinder head is compatible with your specific vehicle and that any necessary modifications are made before installation.
Pros of buying a Honda RBC-1 cylinder head for a K20Z3 engine (used in Honda Civic Si models from 2006-2011):1. Improved Performance: The RBC-1 cylinder head is known for its increased power output and improved airflow, which can lead to better performance and throttle response.
2. Durability: Honda cylinder heads are generally well-built and can withstand high-performance use, making them a reliable choice for modified engines.
3. Availability: As a popular engine, parts for the K20Z3, including the RBC-1 cylinder head, are widely available and relatively affordable.
Cons of buying a HBC-1 cylinder head for a K20Z3 engine:1. Cost: While the parts are generally affordable, the cost of installing the cylinder head and any necessary modifications to the engine can add up, especially if you're not experienced with engine work.
2. Compatibility: Make sure to check that the RBC-1 cylinder head is compatible with your specific K20Z3 engine and any other modifications you have made or plan to make.
3. Performance Gains: While the RBC-1 cylinder head can improve performance, it may not provide the same level of gains for all engines or driving situations.
Conclusion: The Honda RBC-1 cylinder head can be a worthwhile investment for those looking to improve the performance of their K20Z3 engine, as long as they are willing to invest the time and money into the installation and are aware of the potential gains and limitations. It's important to do your research and ensure that the cylinder head is compatible with your specific engine and any modifications you have made.
Recommendation: If you're considering purchasing an RBC-1 cylinder head, it's a good idea to consult with a knowledgeable mechanic or engine builder to help you determine if it's the right choice for your particular situation. They can provide guidance on the installation process and help you set realistic performance expectations. Additionally, make sure to purchase the cylinder head from a reputable supplier to ensure its quality and compatibility with your engine.
Comes as you see in the pictures. 06-11 Honda Civic SI K20Z3 RBC Cylinder Head OEM Engine K20 07 08 09 10 Tested in good working condition prior to removal.