SKU: 5084
GSC P-D Nissan VR30DDTT HP Conical Valve Spring Ti Retainer & Seat Kit 2016+ Infiniti Q50 Q60 Nissan Z (10500RPM/55PSI Max)
GSC Power-Division HP Conical Valve Spring and Titanium Retainer Seat Kit upgrades Nissan VR30DDTT twin-turbo V6 engines in Infiniti Q50 Q60 and Nissan Z models. This complete 24-valve kit handles 10500 RPM limits and 55 PSI maximum boost with 195 lbs seat pressure at 1.900 inch installed height. It reduces valvetrain mass for reliable high-rev performance in boosted applications.
Key Features
- 10500 RPM Capability: Supports extreme engine speeds with coil bind height at 1.150 inch and 0.460 inch maximum lift
- 55 PSI Boost Ready: Delivers 195 lbs seat load and 520 lbs open pressure at 277 lbs per inch spring rate for high-pressure stability
- Titanium Retainers: 6AL4V alloy retainers weigh 8.2 grams each cutting valvetrain inertia versus OEM steel
- Conical Spring Design: 28 gram chromoly steel springs lower harmonics and valve float risk across RPM range
- Complete Kit: Includes springs retainers and chromoly steel seats for direct 24-valve DOHC installation
Product Notes
- Works with factory valve seats no modifications needed
- Verify installed heights during assembly for optimal pressures
- Total valvetrain mass reduced to 88 grams per valve
Installation Notes
- Professional installation recommended.
- Use quality valve spring compressor tool for safe removal and install
- Compatible with OEM valves and keepers check clearances post-install
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2016-2025 | Infiniti | Q50 | 3.0T Red Sport 400 |
| 2017-2025 | Infiniti | Q60 | 3.0T Red Sport 400 |
| 2023+ | Nissan | Z | Performance Nismo Sport |
Why Choose GSC?
- Track-proven in import drag racing and circuit use
- USA-made with aerospace-grade materials for durability
- Exact engineering from dyno testing ensures fit and function
Frequently Asked Questions
-
Q: Does this fit 2018 Infiniti Q50 3.0T Red Sport or 2024 Nissan Z Performance?
A: Yes fits all VR30DDTT engines including 2016+ Q50 Q60 Red Sport 400 and 2023+ Nissan Z Performance Nismo Sport models -
Q: What materials are in the springs retainers and seats?
A: Premium chromoly steel conical springs titanium 6AL4V retainers and chromoly steel seats built for high-stress conditions -
Q: What warranty coverage applies?
A: Lifetime warranty on valve springs covers failure from defects in material or workmanship
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Securely boxed for protection
- Weight: 1.00 lb
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