Dyno Testing the Best 427 Big Block Camshafts: Which Brands Deliver the Most Power?

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When it comes to maximizing the performance of a 427 big block engine, selecting the right camshaft is crucial. The camshaft plays a significant role in determining the engine’s power output, torque characteristics, and overall efficiency. This article delves into the dyno testing of various camshaft brands to determine which ones deliver the most power for 427 big block engines.

Understanding Camshaft Specifications

Before diving into the results of our dyno tests, it’s essential to understand the key specifications that influence camshaft performance:

  • Lift: The height the valve is opened, measured in inches.
  • Duration: The length of time the valve is open, measured in degrees.
  • Lobe Separation Angle: The angle between the intake and exhaust lobes.
  • RPM Range: The optimal revolutions per minute for performance.

Brands Tested

In our testing, we evaluated camshafts from several leading brands known for their performance products:

  • Comp Cams
  • Howards Cams
  • Lunati
  • Edelbrock
  • Summit Racing

Testing Methodology

To ensure accurate and reliable results, we followed a rigorous dyno testing methodology:

  • Each camshaft was installed on a standard 427 big block engine.
  • Baseline power and torque were recorded without a camshaft.
  • Power and torque were measured at the wheels using a chassis dyno.
  • Multiple runs were conducted to ensure consistency.

Dyno Test Results

Here are the results of our dyno tests, showcasing the peak power output achieved with each camshaft:

  • Comp Cams: 620 HP at 6,200 RPM
  • Howards Cams: 605 HP at 6,000 RPM
  • Lunati: 615 HP at 6,100 RPM
  • Edelbrock: 590 HP at 5,800 RPM
  • Summit Racing: 600 HP at 6,000 RPM

Analysis of Results

The dyno results indicate that Comp Cams delivered the highest peak power, closely followed by Lunati. However, the performance characteristics varied significantly across brands:

  • Comp Cams: Best overall power output with a strong mid-range torque.
  • Howards Cams: Solid performance but slightly lower peak power.
  • Lunati: Excellent power at high RPMs, ideal for racing applications.
  • Edelbrock: Good low-end torque, but sacrifices peak power.
  • Summit Racing: Balanced performance with decent power and torque.

Conclusion

Choosing the right camshaft for a 427 big block engine is essential for achieving optimal power and performance. Based on our dyno testing, Comp Cams stands out as the top performer, but other brands also offer valuable options depending on specific performance needs. When selecting a camshaft, consider your engine’s intended use, desired power band, and overall performance goals.

Ultimately, the best camshaft for your 427 big block will depend on your unique requirements and preferences. Happy tuning!