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The 455 cubic inch V8 engine has a storied history in the automotive world, particularly among classic car enthusiasts and performance aficionados. One of the most impactful upgrades for this engine is the intake manifold. This article delves into real owner reviews of 455 intake manifold upgrades and their effects on street performance.
Understanding the 455 Engine
The 455 engine, known for its torque and power, was produced by General Motors from the late 1960s through the 1970s. It was a favorite among muscle car builders due to its robust design and potential for modifications. The intake manifold plays a crucial role in the engine’s performance by controlling the air and fuel mixture entering the combustion chamber.
Benefits of Upgrading the Intake Manifold
Upgrading the intake manifold can lead to several performance benefits, including:
- Improved airflow, leading to better combustion and increased horsepower.
- Enhanced throttle response, making the vehicle more fun to drive.
- Potential for better fuel efficiency under certain driving conditions.
Types of Intake Manifold Upgrades
There are various types of intake manifold upgrades available for the 455 engine. Here are some popular options:
- Aluminum Intake Manifolds: These are lightweight and provide better heat dissipation compared to cast iron manifolds.
- Dual Plane Manifolds: Ideal for street performance, these manifolds improve low-end torque.
- Single Plane Manifolds: Best for high RPM performance, offering maximum airflow at the cost of low-end torque.
Owner Reviews of Popular 455 Intake Manifold Upgrades
Real-world experiences from owners can provide valuable insights into the effectiveness of different intake manifold upgrades. Here are some reviews from 455 engine owners:
1. Edelbrock Performer Intake Manifold
Many owners have reported significant improvements in throttle response and overall drivability with the Edelbrock Performer intake manifold. One owner noted, “The difference was night and day. My car felt more alive, especially during acceleration.”
2. Holley Street Dominator Intake Manifold
The Holley Street Dominator is favored for its high RPM performance. An owner stated, “After installing the Holley manifold, I could feel the power increase at higher speeds. It’s perfect for weekend racing.”
3. Weiand Action Plus Intake Manifold
Owners of the Weiand Action Plus have praised its versatility for both street and strip use. One review highlighted, “It’s a great all-around manifold. I’ve seen gains in both torque and horsepower without sacrificing drivability.”
Installation Considerations
When upgrading your intake manifold, consider the following:
- Compatibility: Ensure the manifold is compatible with your specific 455 engine model.
- Fuel System: You may need to adjust your fuel system to accommodate increased airflow.
- Professional Installation: If unsure, consider hiring a professional to ensure proper installation and tuning.
Conclusion
Upgrading the intake manifold on a 455 engine can yield significant improvements in street performance. Real owner reviews highlight the benefits of various intake options, showcasing how these upgrades can enhance driving experience. As always, careful consideration and research are essential before making any modifications to your vehicle.