Table of Contents
The Pontiac 455 is known for its impressive power and torque, making it a favorite among muscle car enthusiasts. One of the most effective ways to enhance performance is by upgrading the intake manifold. This guide will walk you through the process of installing a performance intake manifold on your Pontiac 455, ensuring you achieve that desired power boost.
Tools and Materials Needed
- Performance intake manifold
- Socket set
- Torque wrench
- Screwdrivers (flathead and Phillips)
- Gasket scraper
- Engine oil
- Intake manifold gasket
- Rags for cleaning
- Safety glasses
- Gloves
Preparation Steps
Before starting the installation, it’s crucial to prepare your workspace and the vehicle. Follow these steps to ensure a smooth process:
- Park the vehicle on a flat surface and engage the parking brake.
- Disconnect the negative battery terminal to prevent any electrical issues.
- Remove any components obstructing access to the intake manifold, such as the air cleaner and throttle linkage.
- Clean the area around the intake manifold to prevent dirt from entering the engine.
Removing the Old Intake Manifold
With the preparation complete, you can now remove the old intake manifold. Follow these steps carefully:
- Loosen and remove the bolts securing the old intake manifold using a socket wrench.
- Carefully lift the manifold off the engine, making sure not to damage any surrounding components.
- Inspect the old gasket for any debris or damage, and clean the surfaces of the engine block thoroughly with a gasket scraper.
Installing the New Performance Intake Manifold
Now that the old manifold is removed, it’s time to install the new performance intake manifold. Follow these steps:
- Apply a thin layer of engine oil to the new gasket to ensure a proper seal.
- Position the new intake manifold over the engine block, aligning it with the bolt holes.
- Carefully lower the manifold onto the engine and ensure the gasket stays in place.
- Hand-tighten the bolts to secure the manifold, making sure to follow the manufacturer’s torque specifications.
Finalizing the Installation
With the manifold in place, you can now finalize the installation. Follow these steps:
- Reconnect any components that were removed, such as the throttle linkage and air cleaner.
- Double-check all connections and ensure everything is securely fastened.
- Reconnect the negative battery terminal.
- Start the engine and let it idle for a few minutes, checking for any leaks or unusual noises.
Tuning Your Pontiac 455
After installing the new intake manifold, tuning your Pontiac 455 is essential to maximize performance. Consider the following:
- Adjust the carburetor settings to match the new airflow provided by the intake manifold.
- Consider upgrading the ignition system for better performance and efficiency.
- Take your vehicle for a test drive and monitor its performance, making adjustments as necessary.
Conclusion
Installing a performance intake manifold on your Pontiac 455 can significantly enhance its power and efficiency. By following this step-by-step guide, you can ensure a successful installation and enjoy the benefits of improved performance on the road. Always remember to take your time and double-check your work for the best results.