VR38 STAGE 1 CYLINDER HEAD PACKAGE | NISSAN GT-R R35 | UPGRADED VALVETRAIN

The Subzero Motorsports VR38 Stage 1 Cylinder Head Package is engineered to deliver a balanced upgrade in airflow, durability, and valvetrain control for the Nissan GT-R R35 platform.

Built using a combination of genuine Nissan components and GSC Power-Division performance upgrades, this package addresses the critical limitations of the factory cylinder head when pushing beyond stock power levels.

With upgraded valve guides, high-pressure conical springs, titanium retainers this setup improves engine breathing, supports higher RPM operation, and ensures consistent valve control under increased boost pressure.

This is the ideal entry-level head upgrade for customers looking to safely push their VR38DETT further while maintaining reliability for street and performance applications.

Included Components:

• GSC Power-Division Intake Valve Guides with Stopper (GSC3046-12)
• GSC Power-Division Exhaust Valve Guides with Stopper (GSC3045-12)
• GSC Power-Division Viton Valve Stem Seals (GSC1050)
• GSC Power-Division High Pressure Conical Spring Kit with Titanium Retainers (GSC5069)
  

Included Services:

• Decking/CNC Facing
• Valve Lapping
• Shim Setting
• Spring height adjustment
• Valve Guide installation
• Valve Guide honing
• Initial Inspection & Prep/cleaning (chemical / ultrasonic)/Crack testing /Deck
  
• Seat Cutting (multi-angle assumed)
• Assembly