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The Mopar 426 HEMI is a legendary engine known for its performance and power. To maximize its potential, enthusiasts often seek supporting modifications that enhance its capabilities. In this article, we will explore the best supporting mods for the Mopar 426 HEMI, focusing on camshafts, intake systems, and forced induction options.
Understanding the Mopar 426 HEMI
The 426 HEMI, introduced in the 1960s, has become an icon in the automotive world. Its unique hemispherical combustion chamber design allows for better airflow and more power. However, to fully unlock its performance, certain modifications can be beneficial.
Camshafts for Enhanced Performance
Upgrading the camshaft is one of the most effective ways to improve the performance of the 426 HEMI. A new camshaft can increase horsepower and torque, making the engine more responsive. Here are some popular camshaft options:
- Comp Cams Xtreme Energy Cam: Known for its aggressive profile, this cam provides significant power gains across the RPM range.
- Hughes Engines Camshaft: Offers a variety of profiles tailored for street and race applications, enhancing both performance and drivability.
- MSD Ignition Cam: Designed for high RPM performance, this camshaft improves throttle response and overall engine efficiency.
Choosing the Right Camshaft
When selecting a camshaft, consider the engine’s intended use. A street-friendly cam will provide better drivability, while a race-oriented cam will maximize power at higher RPMs. It’s essential to match the camshaft with other modifications for optimal results.
Intake Systems for Better Airflow
The intake system plays a crucial role in the performance of the 426 HEMI. Upgrading to a high-performance intake can improve airflow, resulting in increased horsepower. Here are some top choices:
- Edelbrock Performer RPM Intake: This intake manifold is designed for maximum airflow and is a popular choice among HEMI enthusiasts.
- Holley Hi-Ram Intake: A high-rise intake that provides excellent performance for both street and race applications.
- RPM Air-Gap Intake: Offers improved throttle response and torque, ideal for street use.
Installation Considerations
When installing a new intake system, ensure that it is compatible with your engine setup. Proper installation is key to achieving the desired performance gains. Additionally, consider upgrading fuel injectors and tuning the engine for optimal performance.
Forced Induction Options
Forced induction is one of the most effective ways to increase the power output of the 426 HEMI. Superchargers and turbochargers can significantly boost horsepower and torque. Here are some popular forced induction options:
- Procharger Supercharger Kit: This kit offers a significant increase in horsepower without sacrificing drivability.
- Whipple Supercharger: Known for its efficiency and reliability, the Whipple is a great choice for high-performance applications.
- Turbocharger Kits: Various companies offer turbo kits specifically designed for the HEMI, providing a unique way to achieve high power levels.
Benefits of Forced Induction
Forced induction allows for more air and fuel to enter the engine, resulting in increased power output. It can also improve the engine’s efficiency and response. However, it is essential to ensure that the engine internals can handle the added stress from forced induction.
Final Thoughts
Modifying the Mopar 426 HEMI can lead to impressive performance gains. By upgrading the camshaft, intake, and considering forced induction options, enthusiasts can unlock the full potential of this iconic engine. Always remember to match modifications with proper tuning and installation for the best results.