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The Honda B-series engine has long been a favorite among car enthusiasts and tuners. One of the most effective ways to enhance performance is by upgrading the cylinder head. This article will explore the costs, installation process, and power gains associated with porting the Honda B-series head.
Understanding the B-Series Engine
The Honda B-series engine family includes several models, such as the B16, B18, and B20. These engines are known for their high-revving capabilities and strong aftermarket support. Upgrading the head can significantly improve airflow, which is crucial for maximizing power output.
Benefits of Porting the B-Series Head
Porting the cylinder head involves modifying the intake and exhaust ports to improve airflow. This process can lead to several benefits:
- Increased Airflow: Enhanced airflow allows for better combustion and more power.
- Improved Throttle Response: A ported head can improve throttle response, making the engine feel more lively.
- Higher RPM Potential: Porting can help the engine breathe better at higher RPMs, increasing the power band.
Cost of Upgrading the Honda B-Series Head
The cost of upgrading the Honda B-series head can vary widely based on several factors, including the extent of the porting, the shop you choose, and whether you opt for additional modifications.
Estimated Costs
Here’s a breakdown of potential costs:
- Porting Services: $500 – $1,500 depending on the shop and complexity of the work.
- Gasket Set: $100 – $300 for a complete gasket set.
- Labor Costs: $200 – $800 for installation, depending on the mechanic’s rates.
- Additional Parts: $200 – $1,000 for valves, springs, and retainers if upgrading.
Installation Process
Installing a ported head on a Honda B-series engine involves several steps. It’s essential to have a good understanding of engine mechanics or seek professional help.
Step-by-Step Guide
- Preparation: Gather all necessary tools and parts.
- Remove the Old Head: Disconnect all components attached to the cylinder head, including the intake and exhaust manifolds.
- Install the Ported Head: Place the ported head onto the engine block and secure it with new bolts.
- Reattach Components: Reconnect the intake and exhaust systems, along with any sensors and hoses.
- Check for Leaks: After installation, check for any leaks before starting the engine.
Power Gains from Porting the B-Series Head
Porting the head can lead to significant power gains. The actual increase will depend on various factors, including the engine’s overall condition and the extent of the porting.
Expected Power Gains
On average, porting a Honda B-series head can yield:
- 10-20% Increase in Horsepower: Depending on the modifications and tuning.
- Improved Torque Curve: Better low-end and mid-range torque.
- Enhanced Performance at Higher RPMs: More power available in the upper RPM range.
Conclusion
Upgrading the Honda B-series head through porting is a worthwhile investment for those looking to enhance performance. With careful planning and execution, you can achieve substantial power gains and improved throttle response. Whether you choose to do it yourself or hire a professional, understanding the costs and processes involved will help you make an informed decision.