Power Pak 1

Our Power Pak 1 is with you on the hunt for horsepower. Maximize Your PREDATOR's Performance — Power Pak 1 (700–1000whp)

Our Power Pak 1 takes your factory Predator heads and gets them race-ready with premium parts and precision craftsmanship. Designed for serious street cars running an OEM cam and targeting up to 1000whp.

Included Services and Components (customer-supplied core):

🔴 Comprehensive Cleaning
Your heads are thoroughly cleaned and inspected with reliability and performance in mind.

🔴 GSC Power Division Valves
Stock-size valves built for durability and optimized flow.

🔴 GSC 5013 Conical Spring Kit
Delivers superior valve control under extreme conditions.

🔴 GSC Bronze Guide Installation
GSC bronze guides installed and sized to ensure perfect valve-to-guide clearance.

🔴 Precision Valve Job
We apply a multi-angle valve job to maximize flow and ensure a proper seal.

🔴 Milling
Fresh surface cut to provide a proper sealing surface for the head gasket.

🔴 Expert Reassembly
Heads are reassembled with the same care and precision that’s made HeadGames a trusted name in performance.

This package is ideal for high-powered street cars running OEM cams, with the reliability and headroom to handle up to 1000whp.
Reach out now—your Predator is just getting started.

Click to Complete Power Pak 1 Inquiry

OEM Refresh

Restore Your Cylinder Heads to Like-New Condition

If you're restoring your car and returning it to stock, our Refresh Service is the perfect choice. Here’s what’s included:

Included Services:

  • Comprehensive Cleaning: We thoroughly clean your cylinder heads.
  • Valve Reconditioning: Cleaning and refacing of your valves to restore optimal performance.
  • Valve Seat Refresh: Ensures proper sealing and durability.
  • Milling: Provides a fresh sealing surface.
  • Assembly: Includes brand-new Viton valve seals for long-lasting reliability.

With our Refresh Service, your cylinder heads will be restored to like-new condition, ready for years of dependable performance!

Click to Complete OEM Refresh Inquiry

Aftermarket Refresh

Our PREDATOR Aftermarket Refresh service ensures your aftermarket valvetrain is optimized for peak performance. Here’s what’s included:

Included Services:

  • Disassembly & Inspection: We carefully disassemble and inspect every component.
  • Spring Height Check: Verification of your aftermarket spring kit’s height for proper functionality.
  • Valve Inspection: Detailed assessment of all your aftermarket valves.
  • Valve Job Touch-Up: Precision adjustments to improve sealing and flow.
  • Milling & Assembly: A fresh sealing surface and professional reassembly.

Important Notes:

This service is subject to compatibility. If the valvetrain components in your cylinder head do not meet our specifications for safe and reliable operation, we may decline assembly to ensure quality and performance standards.

Give your PREDATOR the refresh it deserves. Contact us today to learn more!

Click to Complete Aftermarket Refresh Inquiry

Rebuild

Restore and Enhance Your PREDATOR Cylinder Head with our Rebuild Service. This is the ultimate solution for worn-out valve seats or aging components, ensuring your PREDATOR heads perform better than new. Here’s what’s included:

Included Services:

  • Inspection & Diagnosis: We assess valve seat wear and identify issues caused by insufficient spring pressure from OEM springs.
  • Comprehensive Cleaning: Complete disassembly and thorough cleaning of all components.
  • Valve Reconditioning: Cleaning and refacing of your valves to restore optimal performance.
  • Precision Valve Job: Performed on our state-of-the-art seat and guide machine for maximum sealing and flow.
  • Milling: Provides a fresh sealing surface.
  • Reassembly: Includes installation of new Viton valve seals for lasting reliability. Experience a Rebuild That’s Better Than New. Contact us today to schedule your service!
Click to Complete Rebuild Inquiry

Rebuild w/ Guides

*Required with Any Valve Upgrade

Upgrading your valves? Our Rebuild with Guides Service is essential to ensure proper valve-to-guide clearance and long-lasting performance.

Included Services:

  • Comprehensive Cleaning: We thoroughly clean your cylinder heads to prepare them for upgrades.
  • GSC Bronze Guide Installation: Installing high-performance GSC Power Division bronze valve guides and sizing them for perfect valve-to-guide clearance.
  • Precision Valve Job: Maximizing flow and ensuring optimal sealing.
  • Milling: Providing a fresh sealing surface.
  • Reassembly: Your cylinder heads are reassembled with care, ensuring peak durability.

This process guarantees years of reliable, high-performance, boosted power! Contact us today to upgrade your valves the right way.

Click to Complete Rebuild w/ Guides Inquiry

Not All Parts Are Created Equal—Here’s How We Pick the Best for Your Build!

Valve Upgrades

If you choose to upgrade your valves, you will need at minimum our Rebuild with Guides Service. This is necessary because the stem size of OEM valves differs from aftermarket valves. Installing an aftermarket valve in an OEM steel guide can create excessive valve-to-guide clearance, which may cause premature guide wear.

If your budget allows for a valve upgrade, we highly recommend it. OEM exhaust valves are prone to burning, which can lead to significant damage—such as destroying the heads, or valve seats.

Spring Pressure Considerations

A common concern when selecting a spring kit is adding too much spring pressure, particularly for street applications. However, when it comes to spring pressure, more is generally better than less. Insufficient pressure can lead to valve float, which can cause significant damage to your engine. Proper spring pressure ensures stable valve control and prevents potential issues at higher RPMs.

Importance of Correct Valve Spring Pressure

The right amount of spring pressure ensures the springs remain controlled, which in turn keeps the valves functioning properly. The number one cause of valve-train or cam/bucket failure is using the wrong valve spring for your application. If the valve spring isn’t up to spec, nothing else in the system will perform at its best. Proper spring selection is key to maintaining reliability and preventing costly damage.