Best Camshaft and Valve Spring Choices for a 600 Hp Ls Swap Z Car

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The LS engine swap has become a popular choice among car enthusiasts, especially for those looking to boost the performance of their Datsun Z cars. When aiming for a target of 600 horsepower, selecting the right camshaft and valve springs is crucial. In this article, we will explore the best options available to help you achieve your performance goals.

Understanding Camshaft Basics

The camshaft plays a vital role in controlling the timing and duration of the engine’s intake and exhaust valves. This affects engine performance, efficiency, and overall power output. When upgrading to a camshaft for a 600 hp LS swap, consider the following:

  • Lift: The lift of the camshaft determines how far the valves open. Higher lift can lead to increased airflow, which is essential for high horsepower builds.
  • Duration: Duration refers to how long the valves stay open. A longer duration can improve high RPM performance but may affect low-end torque.
  • Overlap: Overlap is the period when both intake and exhaust valves are open. More overlap can improve performance at higher RPMs but may hinder drivability.

Top Camshaft Choices for 600 HP LS Swap

Choosing the right camshaft is essential for maximizing performance. Here are some of the best camshaft options for a 600 hp LS swap:

  • Texas Speed Stage 2 Camshaft: This camshaft offers excellent mid-range power and a good balance of drivability and performance. It features a 0.646″ lift and 228/230 duration.
  • Brian Tooley Racing (BTR) Stage 3 Camshaft: Known for its aggressive profile, this cam offers a lift of 0.660″ and 232/234 duration, making it ideal for high horsepower builds.
  • Comp Cams XFI RPM Camshaft: This camshaft is designed for high RPM applications, featuring a lift of 0.660″ and 234/242 duration, perfect for achieving that 600 hp goal.
  • LSA Camshaft: Originally designed for the supercharged LSA engine, this cam offers great performance with a lift of 0.650″ and 223/230 duration, making it a versatile choice.

Importance of Valve Springs

When upgrading your camshaft, it’s equally important to consider the valve springs. The springs must be able to handle the increased lift and duration of the camshaft to prevent valve float and ensure reliable performance. Here are the key factors to consider:

  • Spring Rate: The spring rate should match the camshaft specifications to provide adequate pressure at high RPMs.
  • Installed Height: Ensure the valve springs are compatible with the installed height of your setup to maintain proper tension.
  • Material: High-quality materials like chrome silicon or titanium can offer better performance and longevity.

Here are some top valve spring options that complement the camshaft choices for your 600 hp LS swap:

  • Brian Tooley Racing Dual Valve Springs: These springs are designed for high-performance applications, providing excellent stability and performance at high RPMs.
  • Comp Cams Beehive Springs: Known for their lightweight design, these springs reduce valvetrain inertia, allowing for higher RPMs and better performance.
  • Texas Speed Dual Valve Springs: These springs are rated for high lift and are perfect for aggressive cam profiles, ensuring reliable performance.
  • LS7 Springs: The LS7 springs are a popular choice for many LS swaps, offering great performance and durability for high horsepower applications.

Installation Tips

Installing a new camshaft and valve springs can be a challenging task. Here are some tips to ensure a successful installation:

  • Use a Torque Wrench: Always use a torque wrench to ensure that all bolts are tightened to the manufacturer’s specifications.
  • Check Clearances: Before installation, check for any potential clearance issues with the camshaft and valve springs to avoid damage.
  • Follow Manufacturer Instructions: Always refer to the manufacturer’s instructions for specific installation guidelines and recommendations.
  • Break-in Procedure: Follow a proper break-in procedure after installation to ensure longevity and performance of the new components.

Conclusion

Choosing the right camshaft and valve springs is crucial for achieving 600 horsepower in your LS swap Datsun Z car. With the right components, you can enhance performance, reliability, and overall driving experience. Whether you opt for the Texas Speed Stage 2 or the BTR Stage 3 camshaft, pairing them with quality valve springs will ensure your build reaches its full potential.