GSC Billet S2 Camshafts – Toyota 2JZ-GTE VVTi – GSC7031S2
Forged Billet Camshaft Set for Big Turbo VVTi 2JZ Builds
The GSC Power-Division Billet S2 Camshafts are engineered for the Toyota 2JZ-GTE VVTi, and represent the only forged billet core VVTi camshafts currently available. Designed for single turbo setups larger than 71mm, the S2 profile delivers strong top-end gains without sacrificing bottom-end torque compared to S1 cams.
Proven Performance Gains
With proper reshimming and tuning, users have seen 60–100 WHP increases depending on turbo size. These cams promote excellent peak power while maintaining a usable torque curve across the rev range.
Camshaft Specifications
| Camshaft | ADV Duration | Duration @ 0.040" | Peak Lift | Center Line |
|---|---|---|---|---|
| Intake | 274° | 239° | 10.20mm | Variable |
| Exhaust | 274° | 240° | 10.50mm | 118° |
Performance Range
- Effective RPM Band: 4000–8500 RPM
- Horsepower Support: 800–1500 WHP
- Idle Quality: Rougher than stock
Installation Notes
- Upgraded valve springs required due to increased lift and duration
- Inspect cylinder head casting for clearance before installation
- Minimum .020" / 0.5mm clearance required around bucket bores and outer casting
Built for Boosted Power and Reliability
If you're stepping up to a larger turbo and want a cam profile that delivers serious horsepower without compromising drivability, the S2 camshafts are a proven solution. Precision-machined and performance-tested, they’re ideal for aggressive VVTi-equipped 2JZ builds.
Fitment:
- 1997–2005 Toyota Supra Turbo 3.0L DOHC Inline-6 (2JZ-GTE VVTi, Japan only)
- 1998–2005 Lexus GS300 (2JZ-GTE VVTi swap-compatible)
- 1997–2004 Toyota Aristo VVTi 3.0L Twin Turbo Inline-6 (2JZ-GTE VVTi)
- 1998–2001 Toyota Soarer 3.0L Twin Turbo Inline-6 (2JZ-GTE VVTi swap)
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