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The 6.4 HEMI engine is known for its power and performance, but with the right modifications, it can achieve even more impressive horsepower gains. One of the most effective upgrades is a camshaft swap. In this article, we will explore how to achieve over 100 horsepower gains using Comp Cams and Mopar parts.
Understanding the 6.4 HEMI Engine
The 6.4 HEMI, also known as the 392 HEMI, is a robust engine used in various Chrysler, Dodge, and Jeep models. It features a 6.4-liter displacement and is part of the Gen III HEMI family. This engine is designed for high performance, but like all engines, it can be improved with aftermarket modifications.
The Benefits of a Cam Swap
Swapping the camshaft is one of the most impactful modifications you can make to your 6.4 HEMI. The camshaft controls the timing and duration of the engine’s intake and exhaust valves, which directly affects performance. Here are some benefits of a cam swap:
- Increased horsepower and torque
- Improved throttle response
- Enhanced engine sound
- Better overall performance
Choosing the Right Camshaft
When selecting a camshaft for your 6.4 HEMI, it’s crucial to choose one that matches your performance goals and driving style. Comp Cams offers a variety of camshafts designed specifically for the HEMI platform. Here are some factors to consider:
- Lift and duration specifications
- Compatibility with stock components
- Intended use (street, track, or both)
- Idle characteristics
Essential Mopar Parts for the Swap
In addition to the camshaft, several Mopar parts are necessary for a successful cam swap. These components ensure compatibility and optimal performance. Here is a list of essential parts:
- Mopar Performance Lifters
- Mopar Timing Chain and Gear Set
- Mopar Valve Springs
- Mopar Pushrods
Installation Process
The installation of a camshaft in a 6.4 HEMI requires a good understanding of engine mechanics. It is recommended to follow a detailed guide or consult a professional. Here’s a general overview of the steps involved:
- Remove the engine cover and accessories
- Drain the engine oil and coolant
- Remove the intake manifold
- Disconnect the timing chain and remove the old camshaft
- Install the new camshaft and reassemble the engine
- Refill oil and coolant, then start the engine
Tuning for Maximum Gains
After completing the cam swap, tuning is essential to maximize the performance gains. A proper tune adjusts the engine’s fuel and ignition settings to accommodate the new camshaft. Here are some tuning options:
- Custom tuning using a handheld tuner
- Dyno tuning for precise adjustments
- ECU reprogramming for optimal performance
Expected Horsepower Gains
With the right camshaft and supporting modifications, it is possible to achieve over 100 horsepower gains on the 6.4 HEMI. Many enthusiasts report significant improvements in both horsepower and torque. Here are some examples of potential gains:
- Stock 6.4 HEMI: Approximately 470 horsepower
- After cam swap: Up to 570 horsepower
Conclusion
The 6.4 HEMI cam swap is a powerful upgrade that can yield impressive horsepower gains. By selecting the right camshaft from Comp Cams and utilizing essential Mopar parts, you can transform your engine’s performance. With proper installation and tuning, you can enjoy the benefits of enhanced power and responsiveness on the road or track.