Ls vs Coyote Engine: Building a 600+ Hp Streetfighter with Afr 235cc Heads

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The debate between LS and Coyote engines has been a hot topic among automotive enthusiasts, especially when it comes to building high-performance streetfighters. Both engine platforms have their unique advantages and challenges. In this article, we will explore how to build a 600+ horsepower streetfighter using AFR 235cc heads, focusing on the LS and Coyote engine options.

Understanding the LS Engine

The LS engine family, originating from General Motors, has gained immense popularity due to its lightweight design, robust performance, and aftermarket support. With a wide range of displacement options and a strong aftermarket, the LS is a favorite among tuners.

Key Features of the LS Engine

  • Aluminum block and heads for reduced weight.
  • Modular design allows for easy upgrades.
  • Strong aftermarket support for performance parts.
  • High power potential with forced induction.

Understanding the Coyote Engine

The Ford Coyote engine, introduced in 2011, is a modern V8 that has quickly become a favorite in the performance community. Known for its high-revving nature and advanced technology, the Coyote offers a different approach to power compared to the LS.

Key Features of the Coyote Engine

  • DOHC design for improved airflow and efficiency.
  • High compression ratio for better power output.
  • Integrated technology for better performance management.
  • Strong aftermarket with a focus on turbocharging.

Building a 600+ HP Streetfighter

To achieve 600+ horsepower in a streetfighter, both LS and Coyote engines can be built with AFR 235cc heads. These heads are known for their excellent airflow characteristics, making them suitable for high-performance applications. Below, we will outline the steps and considerations for both engine types.

Building the LS Engine

When building an LS engine for street use, several components must be carefully selected to reach the desired horsepower level. Here are the key steps:

  • Choose the Right Block: A 5.3L or 6.0L block is commonly used for builds aiming for high horsepower.
  • Upgrade the Internals: Forged pistons and rods are essential for handling increased power levels.
  • Install AFR 235cc Heads: These heads will significantly improve airflow and power.
  • Forced Induction: Consider adding a supercharger or turbocharger for optimal power gains.
  • Tuning: Proper tuning is critical to ensure reliability and performance.

Building the Coyote Engine

Building a Coyote engine to reach 600+ horsepower involves a slightly different approach. Here are the steps to consider:

  • Start with a Strong Base: A stock Coyote block can handle significant power, but upgrades may be necessary for extreme builds.
  • Upgrade Internals: Like the LS, forged internals are recommended for reliability under high boost.
  • Install AFR 235cc Heads: These heads will enhance the engine’s breathing capabilities.
  • Boost it Up: Adding a supercharger or turbo system will help achieve the desired horsepower.
  • Custom Tuning: Ensure the engine is properly tuned to maximize performance and longevity.

Comparing Performance Metrics

When comparing the LS and Coyote engines, several performance metrics are essential to consider. Each has its strengths and weaknesses, which can influence your decision.

Power Delivery

The LS engine typically delivers power in a linear fashion, providing a strong mid-range torque that is ideal for street use. In contrast, the Coyote engine has a more aggressive power band, especially at higher RPMs, making it feel more explosive.

Tuning Flexibility

Both engines offer excellent tuning flexibility, but the LS has a broader range of aftermarket tuning options. The Coyote benefits from advanced tuning technology, allowing for more precise adjustments.

Cost Considerations

Building a 600+ horsepower streetfighter can be a costly endeavor, regardless of the engine choice. Here are some cost considerations:

  • Engine Cost: LS engines are generally more affordable than Coyote engines.
  • Parts Availability: The LS has a larger aftermarket, which can lead to lower prices for performance parts.
  • Labor Costs: Depending on the complexity of the build, labor costs can vary significantly.
  • Tuning Costs: Professional tuning services can add to the overall expense.

Conclusion

In conclusion, both the LS and Coyote engines are capable of producing 600+ horsepower streetfighters with the right build and components. Your choice will depend on personal preferences, budget, and desired performance characteristics. Whether you choose the LS for its affordability and aftermarket support or the Coyote for its modern technology and high-rev capabilities, both engines can deliver thrilling performance on the street.