Ls vs Hemi Comparison: Building a 700+ Hp Street Beast with Edelbrock and Summit Parts

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The debate between LS and HEMI engines has been a hot topic among car enthusiasts for years. Both engine types present unique advantages and challenges, especially when it comes to building a powerful street beast capable of exceeding 700 horsepower. In this article, we will delve into the key differences between LS and HEMI engines, and how to utilize Edelbrock and Summit Racing parts to achieve your performance goals.

Understanding LS and HEMI Engines

LS engines, originating from General Motors, are known for their lightweight design and efficient performance. On the other hand, HEMI engines, developed by Chrysler, are recognized for their unique combustion chamber design that promotes higher power output. Here’s a quick comparison:

  • LS Engines: Compact, lightweight, and versatile.
  • HEMI Engines: Powerful, with a distinctive combustion chamber design.

Choosing the Right Engine for Your Build

When deciding between an LS or HEMI engine for your 700+ HP street beast, consider the following factors:

  • Availability: LS engines are widely available and supported by numerous aftermarket parts.
  • Cost: LS builds can often be more affordable due to the abundance of parts.
  • Performance Goals: HEMI engines may provide a more aggressive power band for certain applications.

Components for Building a 700+ HP Engine

Regardless of whether you choose an LS or HEMI engine, the right components are crucial for achieving your horsepower goals. Here are some essential parts to consider:

  • Intake Manifold: Upgrading to an Edelbrock intake manifold can significantly improve airflow and performance.
  • Camshaft: Selecting a high-performance camshaft is vital for maximizing power output.
  • Fuel System: Ensure your fuel system can support the increased horsepower with high-flow injectors and pumps.
  • Exhaust System: A quality exhaust system will enhance flow and reduce back pressure.

Building an LS Engine for 700+ HP

To build a powerful LS engine, follow these steps:

  • Select a Base Engine: Start with a strong foundation, such as an LS3 or LS7.
  • Upgrade the Heads: Consider aftermarket heads like those from Edelbrock for improved airflow.
  • Install a Performance Cam: Choose a camshaft designed for high RPM performance.
  • Optimize the Fuel System: Use larger injectors and a high-performance fuel pump.
  • Tune the Engine: A proper tune is essential to unlock the full potential of your build.

Building a HEMI Engine for 700+ HP

For those opting for a HEMI build, here’s a step-by-step guide:

  • Choose the Right Base: Start with a 5.7L or 6.4L HEMI engine.
  • Upgrade the Cylinder Heads: Look for high-flow HEMI heads to enhance performance.
  • Install a Performance Camshaft: Select a camshaft tailored for your power goals.
  • Enhance the Fuel System: Upgrade to high-performance fuel injectors and pumps.
  • Tune for Performance: A professional tune is crucial for optimizing your HEMI engine.

Utilizing Edelbrock and Summit Parts

Edelbrock and Summit Racing offer a wide range of parts suitable for both LS and HEMI builds. Here are some recommended components:

  • Edelbrock Intake Manifolds: Enhance airflow for improved performance.
  • Edelbrock Camshafts: Designed for maximum power and efficiency.
  • Summit Racing Fuel Pumps: Ensure adequate fuel delivery for high-performance applications.
  • Summit Racing Exhaust Systems: Improve exhaust flow and reduce back pressure.

Final Thoughts on LS vs HEMI

Ultimately, the choice between an LS and HEMI engine comes down to personal preference and specific performance goals. Both engine types can be built to exceed 700 horsepower with the right components and tuning. By leveraging the quality parts offered by Edelbrock and Summit Racing, you can create a street beast that not only performs well but also turns heads on the road.