GSC Power Division Conical Valve Spring Kit – Nissan TB48 (GSC5077)
High-Performance Valvetrain Solution for TB48 Engines
The GSC Power Division Conical Valve Spring Kit is designed to support high-RPM and boosted Nissan TB48 builds. This complete package includes:
- 24 conical valve springs
- 24 lightweight titanium retainers
- 24 chromoly valve spring seats
Technical Specifications
- Install Height: 1.330"
- Seat Pressure: 100 lbs
- Open Pressure @ 11.4mm Lift: 250 lbs @ 0.881"
- Coil Bind: 0.818"
- Max Valve Lift: 0.449"
- Max RPM: 10,000
- Max Boost: 40 psi (forced induction)
Why Choose Conical Springs?
Conical valve springs are known for their ability to reduce valvetrain harmonics more effectively than cylindrical or beehive designs. Their tapered coil geometry and variable spacing act as natural dampers, minimizing shock transfer and extending component life—especially critical in high-performance, boosted applications.
Built for Boost, RPM, and Reliability
- Super-Finished Surface: Each spring undergoes a multi-stage heat and surface treatment for consistent performance and long-term durability.
- Titanium Retainers: Lightweight and strong, ideal for aggressive cam profiles and elevated boost levels.
- Chromoly Seats: Precision-machined for optimal spring alignment and longevity under extreme conditions.
Perfect for Turbocharged TB48 Builds
If you're pushing your TB48 engine to the limit, the GSC5077 Conical Valve Spring Kit delivers the control, strength, and reliability needed to handle serious RPM and boost.
Fitment:
- 2002-2016 Nissan Patrol Y61 TB48DE
- 2002-2021 Nissan Patrol Safari TB48DE (Middle East Spec)
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