NISSAN GTR R35 VR38 STAGE 3 CYLINDER HEAD PACKAGE UPGRADE (MAX EFFORT)

The Subzero Motorsports VR38 Stage 3 Cylinder Head Package represents the highest level of cylinder head development for the Nissan GTR R35 platform.

Built for extreme horsepower and high RPM applications, this package is centered around the GSC Power-Division S3 billet camshaft set—designed to deliver maximum lift, aggressive duration, and optimal airflow for large turbo and race-driven setups.

Airflow is further enhanced with +1mm oversized Super Alloy intake and exhaust valves, increasing volumetric efficiency while maintaining structural integrity under extreme heat and cylinder pressures. The upgraded 6.6mm exhaust valve stem configuration improves durability and reduces stress-related failures in high-load environments.

To handle the demands of aggressive cam profiles and high boost, the valvetrain is equipped with GSC's Extreme Pressure Conical Spring Kit paired with titanium retainers, ensuring precise valve control and stability at very high RPM.

What sets this package apart is the inclusion of SZM Beryllium Valve Seats, offering superior heat transfer, improved sealing, and exceptional durability in extreme conditions, making them the preferred choice for high-end race and record-breaking builds.

This is a no-compromise cylinder head solution, built for those pushing the absolute limits of the VR38DETT platform.

Included Components

• GSC Power-Division Intake Valve Guides with Stopper (GSC3046-12)

• GSC Power-Division 6.6mm Exhaust Valve Guides with Depth Step (GSC3143.001-12)

• GSC Power-Division Viton Valve Stem Seals (GSC1050)

• GSC Power-Division Extreme Pressure Conical Spring Kit with Titanium Retainers (GSC5089)

• GSC Power-Division +1mm Flat Face Intake Valves (GSC2058-12)

• GSC Power-Division 6.6mm Stem +1mm Super Alloy Exhaust Valves (GSC2057-12)

• GSC Power-Division Billet S3 Camshaft Set (GSC7045S3)

• SZM Beryllium Valve Seats (Set of 24)

• SZM GT-R R35 Jack Bolts

Included Services

• Initial Inspection & Preparation

• Chemical & Ultrasonic Cleaning

• Crack Testing

• Deck Inspection

• CNC Intake & Exhaust Port Development

• CNC Combustion Chamber Development

• High Jack Bolt Installation

• Water Jacket Reinforcement

• CNC Decking / Facing

• Valve Lapping

• Valve Shim Setting

• Installed Spring Height Adjustment

• Valve Guide Installation

• Valve Guide Honing

• Valve Seat Installation

• Multi-Angle Valve Seat Cutting

• Heat Cycle & Vacuum Testing

• Complete Cylinder Head Assembly

Learn More About the Nissan GTR R35 VR38DETT Stage 3 Cylinder Head Package

Want to know exactly how the SZM Nissan GTR R35 VR38DETT Stage 3 Cylinder Head Package is built? Read our in-depth technical blog covering every CNC machining process, cylinder head modification, valvetrain setup, and premium component used to improve airflow, increase durability, and support high-horsepower VR38DETT engines.

Whether you're researching a Nissan GTR R35 cylinder head upgrade or planning a VR38DETT engine build, our complete technical guide explains every engineering process behind the SZM Stage 3 Cylinder Head Package.

Read the full Stage 3 Cylinder Head Package technical guide below.