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The Chevy 350 engine is a popular choice among car enthusiasts and performance builders. One of the most effective ways to increase horsepower is through exhaust upgrades, particularly by installing long tube headers. This article will guide you through the benefits, installation process, and considerations for upgrading your Chevy 350 exhaust system.
Benefits of Long Tube Headers
Installing long tube headers on your Chevy 350 can lead to significant performance gains. Here are some key benefits:
- Increased Horsepower: Long tube headers can provide a horsepower increase of 20 or more, depending on other modifications.
- Improved Torque: Enhanced exhaust flow helps in increasing torque, especially in the mid-range RPMs.
- Better Sound: Long tube headers produce a deeper, more aggressive exhaust note.
- Weight Reduction: Many aftermarket headers are lighter than stock manifolds.
Choosing the Right Long Tube Headers
When selecting long tube headers for your Chevy 350, consider the following factors:
- Material: Headers are commonly made from stainless steel or mild steel. Stainless steel offers better corrosion resistance.
- Coating: Some headers come with ceramic or chrome coatings to enhance durability and appearance.
- Tube Diameter: Larger diameter tubes can improve flow but may require additional tuning.
- Fitment: Ensure the headers are designed for your specific vehicle model and year.
Installation Process
Installing long tube headers can be a rewarding project. Here’s a step-by-step guide to help you through the installation:
Tools and Materials Needed
- Long tube headers
- Gasket set
- Header bolts
- Socket set
- Torque wrench
- Wrench set
- Jack and jack stands
- Safety glasses and gloves
Step-by-Step Installation
Follow these steps for a successful installation:
- Preparation: Park your vehicle on a flat surface, engage the parking brake, and disconnect the battery.
- Lift the Vehicle: Use a jack to lift the front of the vehicle and secure it with jack stands.
- Remove Stock Exhaust Manifolds: Unbolt and remove the stock exhaust manifolds, taking care to remove any old gaskets.
- Install New Headers: Position the new headers in place and secure them using the provided bolts and gaskets.
- Tighten Bolts: Use a torque wrench to tighten the header bolts to the manufacturer’s specifications.
- Reconnect Exhaust System: Reattach the exhaust system to the headers, ensuring all connections are secure.
- Reconnect Battery: Once everything is in place, reconnect the battery and start the engine.
Tuning Your Engine
After installing long tube headers, it’s essential to tune your engine for optimal performance. Consider the following:
- ECU Reflash: Reprogramming the engine control unit (ECU) can help adjust fuel maps to match the new exhaust flow.
- Dyno Tuning: A dyno tune can provide precise adjustments, maximizing horsepower and torque.
- Monitoring Performance: Keep an eye on engine performance and check for any issues post-installation.
Common Issues and Solutions
While installing long tube headers can greatly enhance performance, some common issues may arise:
- Fitment Problems: If headers do not fit properly, double-check the model specifications and consider adjusting or using spacers.
- Exhaust Leaks: Ensure all gaskets are properly installed and that bolts are tightened to prevent leaks.
- Check Engine Light: If the check engine light comes on, a reflash or tuning may be necessary to correct any error codes.
Conclusion
Upgrading to long tube headers is a worthwhile investment for enhancing the performance of your Chevy 350. With the potential for a 20+ horsepower increase, improved torque, and a more aggressive sound, the benefits are clear. Follow the installation guide carefully and consider tuning your engine to maximize the performance gains. Enjoy your upgraded ride!