GSC Power-Division 3046-12 VR38DETT Intake Valve Guide Set for Nissan GT-R

Vehicle Fitment

• 2009-2025 Nissan GT-R R35 (VR38DETT 3.8L Twin-Turbo V6)

Features

• Manganese bronze intake valve guides for enhanced wear resistance
• Stopper-style design for secure and precise guide alignment
• Precision CNC-machined for consistent OEM-style fitment
• Improved thermal conductivity vs stock guides
• Built for high-RPM and high-boost performance applications
• Direct replacement for OEM intake valve guides
• Helps maintain stable valve movement under load
• Supports aftermarket tuning and high-power builds

Specifications

• Part Number: 3046-12
• Material: Manganese bronze
• Quantity: 12 intake valve guides (full set)
• Valve Stem Diameter Fit: ~6 mm (factory size)
• Total Guide Length: ~41.10 mm (approx)
• Outer Diameter: ~10.03 mm
• Installation: Press-fit into VR38DETT cylinder head

Included Components

• 12x Manganese bronze intake valve guides (stopper-style)

Product Description

The GSC Power-Division 3046-12 Intake Valve Guide Set is engineered specifically for the Nissan R35 GT-R's VR38DETT 3.8 L twin-turbo V6 engine, spanning models from 2009 through 2025. Made from high-quality manganese bronze, these intake guides offer improved heat resistance and wear characteristics over the factory guides - a key upgrade for performance, high-RPM, and high-boost applications. Precision CNC-machined to tight tolerances, the guides ensure stable valve alignment and consistent fitment during head rebuilds or performance engine builds.

This complete set of 12 stopper-style intake valve guides is designed to drop directly into the VR38DETT cylinder head with minimal additional machining and works well in both stock and tuned engines. With superior material and construction compared with OEM guides, the 3046-12 set helps maintain valve stem control, reduces guide wear over time, and improves durability under demanding conditions - making it a valuable upgrade for GT-R owners pursuing high power and reliability. Professional installation with correct guide pressing tools is recommended for best results.