GSC Dual Valve Spring Kit w/ Titanium Retainers – Toyota 2JZ – GSC5266
High-Boost Dual Spring Kit for 2JZ Cylinder Heads
The GSC Power-Division Dual Valve Spring Kit is built for the Toyota 2JZ platform and includes everything needed for serious valvetrain control. This complete kit features 24 dual valve spring assemblies, 24 titanium retainers, plus 24 inner and outer spring seats—engineered to handle high RPM and elevated boost levels.
Performance Specs
- Install Height: 1.258" / 1.013"
- Seat Pressure: 125 lbs
- Open Pressure: 254 lbs @ 0.811" / 0.566" (11.35mm lift)
- Coil Bind: 0.766"
- Max Valve Lift: 0.447"
- Max RPM: 10,500 RPM
- Max Boost: 80 psi
Engineered for Stability Under Pressure
Dual spring setups offer increased control over valve motion, especially under extreme RPM and boost conditions. GSC’s precision-machined titanium retainers and multi-stage treated springs ensure long-term reliability and consistent performance, even with aggressive cam profiles.
Fitment:
- 1993–1998 Toyota Supra Turbo 3.0L DOHC Inline-6 (2JZ-GTE)
- 1991–2000 Toyota Aristo 3.0L Twin Turbo Inline-6 (2JZ-GTE, Japan only)
- 1998–2005 Lexus GS300 (2JZ-GTE swap-compatible)
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