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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 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 Raptor the refresh it deserves. Contact us today to learn more!

Click to Complete Aftermarket Refresh Inquiry

Rebuild

Restore and Enhance Your Subaru Cylinder Heads Our Rebuild Service is the ultimate solution for worn-out valve seats or aging components, ensuring your Raptor heads perform better than new.

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

Pocket Port

Pocket Port: The Perfect Upgrade for 500-1000whp Builds

If you’re making 500whp to 1000whp, a full port isn’t just unnecessary—it can actually hurt performance by increasing port volume too much, reducing efficiency under the curve. That’s why we created the Pocket Port, a cost-effective solution that focuses on reshaping and resizing the critical valve pocket areas to enhance flow where it matters most.

The Benefits:
More area under the curve and the ability to make power at lower, safer boost levels, keeping your setup efficient, reliable, and performing at its best. The runner stays stock.

Services Include:

  • CNC Pocket Porting: Disassembly, cleaning, and CNC precision porting to optimize flow.
  • GSC Power Division Bronze Guide Installation: New bronze guides and seals expertly installed for enhanced durability.
  • HG Precision Valve Job: Restores sealing and maximizes airflow for consistent performance.
  • Milling: Provides a flawless surface finish for proper sealing.
  • Professional Assembly: Assembled with expert care for ultimate reliability and performance.
Click to Complete Pocket Port Inquiry

Pocket Port R

The Perfect Upgrade for 500-700whp Builds

If you’re making 500whp to 700whp, a full port isn’t just unnecessary—it can actually hurt performance by increasing port volume too much, reducing efficiency under the curve. That’s why we created the Pocket Port R, a cost-effective solution that focuses on reshaping and resizing the critical valve pocket areas to enhance flow where it matters most PLUS combustion chamber reshaping to rid of any hot spots.

The Benefits:
More area under the curve and the ability to make power at lower, safer boost levels, combustion chamber reshaping which raises the knock threshold, keeping your setup efficient, reliable, and performing at its best. The runner stays stock.

Services Include:

  • CNC Pocket Porting: Disassembly, cleaning, and CNC precision porting to optimize flow.
  • GSC Power Division Bronze Guide Installation: New bronze guides and seals expertly installed for enhanced durability.
  • HG Precision Valve Job: Restores sealing and maximizes airflow for consistent performance.
  • Lash Adjustment: HeadGames does not set lash on FA. This is to be completed by the customer on their engine.
  • Milling: Provides a flawless surface finish for proper sealing.
  • Professional Assembly: Assembled with expert care for ultimate reliability and performance.
Click to Complete Pocket Port R 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, turbo, or valve seats.

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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.