GSC Power Division Exhaust Valve Guide +0.003" Oversize Single w/ Stopper (Nissan / Infiniti VR30DDTT) GSC3137.003-1
The GSC Power Division +0.003" Oversized Exhaust Valve Guide is engineered for the Nissan/Infiniti VR30DDTT twin-turbo V6 platform. Featuring a stopper-style design, this guide offers secure seating and enhanced valve stem controlperfect for heads that have been machined or require tighter tolerances.
Fitment & Options
- Engine Compatibility: Nissan / Infiniti VR30DDTT
- Standard Size: Available individually or in full sets of 12
- Oversized Variants: Offered in +0.001" and +0.003" for custom-fit applications
Technical Specifications
- Total Length: 1.591 in / 40.41 mm
- Outer Diameter: 0.3751 in / 9.53 mm
- Valve Stem Diameter: 5.5 mm
Why Choose GSC3137.003-1?
- Stopper-style profile for improved valve stability
- Precision-machined for consistent fit and long-term durability
- Ideal for performance upgrades or factory head rebuilds
Whether you're building for street, track, or reliability, GSC3137.003-1 delivers the precision and performance trusted by top-tier engine builders.
Fitment:
- 2016–2022 Infiniti Q50 Red Sport 400
- 2017–2022 Infiniti Q60 Red Sport 400
- 2023+ Nissan Z (RZ34) Performance & Proto Spec
- 2021–2023 Infiniti Q50 Luxe / Sensory / Signature Edition
- 2020–2022 Infiniti Q60 Luxe / Sport / Sensory
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