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The Datsun 240Z is a classic sports car that has captured the hearts of many enthusiasts. One of the most effective ways to enhance its performance is by installing a new header. This article will guide you through the process of header installation, which can improve exhaust flow and potentially add an extra 15 horsepower to your vehicle for around $600.
Understanding the Benefits of a Header
Headers are designed to replace the factory exhaust manifold and significantly improve exhaust flow. Here are some benefits of upgrading to a performance header:
- Increased horsepower: A well-designed header can increase horsepower by improving exhaust flow.
- Better throttle response: Improved exhaust flow leads to quicker throttle response.
- Enhanced sound: Headers can give your Datsun a more aggressive exhaust note.
- Weight reduction: Performance headers are often lighter than stock manifolds.
Tools and Materials Needed
Before starting the installation, gather the following tools and materials:
- Socket set
- Wrench set
- Torque wrench
- Gasket scraper
- New header gaskets
- Performance headers
- High-temperature exhaust sealant
- Jack and jack stands
- Safety glasses and gloves
Preparation for Installation
Preparation is key for a successful header installation. Follow these steps:
- Ensure safety: Always wear safety glasses and gloves when working on your vehicle.
- Lift the car: Use a jack to lift the front of the Datsun and secure it with jack stands.
- Disconnect the battery: Remove the negative terminal to prevent any electrical issues.
- Remove the old exhaust components: Carefully take off the stock exhaust manifold and any connected parts.
Header Installation Steps
Follow these steps to install your new headers:
- Clean the surface: Use a gasket scraper to clean the mounting surface on the engine block.
- Install new gaskets: Place the new header gaskets onto the engine block.
- Position the headers: Carefully position the new headers over the gaskets, aligning them with the bolt holes.
- Secure headers: Hand-tighten the header bolts to hold the headers in place.
- Torque the bolts: Use a torque wrench to tighten the bolts to the manufacturer’s specifications.
- Reattach exhaust components: Reconnect the exhaust pipe and any other components that were removed.
- Check for leaks: Inspect all connections for any potential leaks.
Final Steps and Testing
After the installation is complete, follow these final steps:
- Reconnect the battery: Reattach the negative terminal to the battery.
- Start the engine: Start the Datsun and listen for any unusual noises.
- Check performance: Take the car for a test drive to feel the improvements in power and throttle response.
- Monitor exhaust: Check for any exhaust leaks during and after the test drive.
Conclusion
Installing a performance header on your Datsun 240Z can lead to significant improvements in horsepower and overall driving experience. With the right tools and a bit of patience, this upgrade can be accomplished at home for around $600. Enjoy the enhanced performance and the classic sound of your Datsun!