Top 5 Builds for the 6.4 Hemi: Achieving 550+ Hp with Crane Cam, Cai, and Exhaust

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The 6.4 HEMI engine has become a popular choice among performance enthusiasts looking to extract maximum horsepower from their vehicles. With the right modifications, achieving 550+ horsepower is entirely possible. This article outlines the top five builds utilizing Crane Cams, Cold Air Intakes (CAI), and exhaust systems to help you reach that goal.

1. Crane Camshaft Upgrade

One of the most effective ways to increase horsepower is by upgrading the camshaft. Crane Cams offers a variety of options specifically designed for the 6.4 HEMI. A performance camshaft can improve airflow and enhance engine responsiveness, leading to significant power gains.

  • Choose a camshaft with a higher lift and duration.
  • Consider a grind designed for your specific performance goals.
  • Crane Cam 144021: Excellent for street and strip use.
  • Crane Cam 144022: Ideal for high RPM performance.

2. Cold Air Intake (CAI) System

Upgrading to a high-performance Cold Air Intake system is crucial for maximizing airflow into the engine. A CAI not only increases horsepower but also improves throttle response and engine sound.

  • Look for a CAI that offers a significant increase in airflow.
  • Ensure it fits well with your existing engine setup.

Top CAI Options

  • K&N 63-1561: Known for its easy installation and impressive gains.
  • Volant 152536: Features a sealed box for cooler air intake.

3. Exhaust System Upgrade

An efficient exhaust system is essential for improving engine performance. Upgrading to a high-flow exhaust can reduce back pressure and increase horsepower significantly.

  • Choose a cat-back exhaust system for maximum performance.
  • Consider materials like stainless steel for durability.

Best Exhaust Systems

  • MagnaFlow 19236: Offers a deep tone and excellent performance.
  • Flowmaster 817699: Known for its aggressive sound and power increase.

4. Tuning the Engine

After installing performance upgrades, tuning your engine is crucial to optimize the modifications. A proper tune can unlock additional horsepower and improve overall drivability.

  • Consider a custom tune for your specific build.
  • Use a reputable tuner familiar with the 6.4 HEMI.
  • DiabloSport Trinity 2: Offers comprehensive tuning capabilities.
  • HP Tuners: Provides advanced tuning features for experienced users.

5. Supporting Mods for Maximum Power

To fully realize the potential of your 6.4 HEMI, consider additional supporting modifications that can enhance performance and reliability.

  • Upgraded fuel injectors for better fuel delivery.
  • High-performance spark plugs for improved ignition.
  • Better cooling systems to manage increased heat.

Essential Supporting Mods

  • Injector Dynamics ID1050X: High-flow injectors for increased fuel delivery.
  • NGK TR55: Performance spark plugs for enhanced ignition.

By implementing these five builds, you can achieve over 550 horsepower from your 6.4 HEMI. Each component plays a critical role in enhancing performance, so choose wisely and enjoy the thrill of driving a powerful engine.