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SKU: 2241-12
GSC Power-Division Nissan VR30DDTT 28.5mm Head 97.5mm Long Exhaust Valve Set of 12 - Fits 2016+ Infiniti Q50 Q60 QX55 2023+ Nissan Z
This GSC Power-Division set includes 12 exhaust valves engineered for the Nissan VR30DDTT twin-turbo V6 engine in 2016+ Infiniti Q50 and Q60, 2022+ QX55, and 2023+ Nissan Z models. The 28.5mm head diameter matches stock specs while the 97.5mm length (+1mm over stock) accommodates high-lift cams and aftermarket heads. These valves handle extreme boost levels and heat for consistent power in tuned turbo applications.
Key Features
- One-Piece Forged 21-4N Stainless Steel: Delivers high strength to resist fatigue and distortion under high heat and pressure in turbocharged engines
- 28.5mm Head Diameter: Retains OEM dimensions for drop-in compatibility with stock valve seats and direct fit in VR30DDTT heads
- 97.5mm Overall Length (+1mm): Extends valve travel for taller aftermarket heads or aggressive cam profiles without clearance issues
- Swirl Polished Finish: Enhances exhaust flow efficiency and minimizes guide wear for smoother operation and longevity
- 6.97mm Stem Diameter: Precision ground at 6.970-6.985mm for exact fit in stock or oversized guides with reliable sealing
Product Notes
- Complete set of 12 valves covers all exhaust positions on the VR30DDTT V6
- Inspect valve guides and seats prior to installation for proper clearance
- Packed in protective tubing to prevent damage during shipping
Installation Notes
- Professional installation recommended.
- Check valve-to-piston clearance with high-lift cams using clay method
- Compatible with stock valve springs up to 500hp levels. upgrade for higher power
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2016-2024 | Infiniti | Q50 | 3.0T |
| 2017-2023 | Infiniti | Q60 | 3.0T |
| 2022-2024 | Infiniti | QX55 | 3.0T |
| 2023+ | Nissan | Z | 3.0T |
Why Choose GSC Power-Division?
- Proven in drag racing and track applications for VR30DDTT builds
- Made in USA with tight tolerances for repeatable performance
- Backed by real-world testing in high-horsepower turbo setups
Frequently Asked Questions
-
Q: Which VR30DDTT models does this valve set fit?
A: Designed for all VR30DDTT-equipped vehicles including 2016+ Infiniti Q50 3.0T, 2017+ Q60 3.0T, 2022+ QX55 3.0T, and 2023+ Nissan Z 3.0T with no modifications to heads -
Q: What material and construction do these valves use?
A: One-piece forged from 21-4N stainless steel with swirl polished heads and precision-ground stems for heat resistance and durability -
Q: What warranty coverage is provided?
A: GSC Power-Division offers a 1-year warranty against manufacturing defects when installed by a qualified technician
Shipping & Handling
- Method: UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Securely boxed with protective sleeves
- Weight: 1.90 lbs
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