Conical Valve Spring Kit – Nissan VR30DDTT - GSC5083
High RPM Valvetrain Control for Boosted VR30 Builds
Designed for the Nissan VR30DDTT engine, the GSC5083 Conical Valve Spring Kit delivers exceptional valvetrain stability under high boost and high RPM conditions. This complete kit includes 24 conical valve springs, 24 titanium retainers, and 24 chromoly spring seats, engineered to handle aggressive cam profiles and elevated cylinder pressures.
Performance Specs
- Seat Pressure: 91 lbs @ 1.297" install height
- Open Pressure: 221 lbs @ 0.904" lift (10.00mm)
- Maximum Valve Lift: 0.451"
- Coil Bind: 0.786"
- Max RPM: 9,500 RPM
- Max Boost: 40 psi
Why Choose Conical Springs?
Unlike traditional cylindrical or beehive springs, conical springs feature variable coil diameter and spacing, acting as a natural harmonic damper. This design reduces valvetrain shock, minimizes wear, and extends component life—especially critical in engines pushed to the limit by aftermarket tuning.
Built for Reliability
Each spring undergoes a multi-step heat treatment and receives a super-finished surface for enhanced durability and consistent performance. Whether you're chasing RPMs or dialing in boost, this kit is built to keep your VR30 valvetrain in check.
Fitment:
- 2016–2024 Infiniti Q50 Red Sport 3.0L Twin Turbo
- 2017–2024 Infiniti Q60 Red Sport 3.0L Twin Turbo
- 2023–2024 Nissan Z 3.0L Twin Turbo (VR30DDTT)
- 2021–2024 Nissan Skyline 400R (Japan Market VR30DDTT)
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