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SKU: 2067-12 | UPC: GSC2067-12
GSC P-D Toyota 2JZ Super Alloy Chrome Polished Exhaust Valve - 30.0mm Head (+1mm) - Set of 12 for 1992-2005 Lexus and 1993-1998 Toyota Models
Equip your 2JZ engine with GSC Power-Division exhaust valves featuring 30.0mm heads +1mm over stock for enhanced exhaust flow. These valves fit 1992-2005 Lexus GS300 IS300 SC300 and 1993-1998 Toyota Supra models with 2JZ-GE or 2JZ-GTE. The set of 12 delivers reliable performance under high heat and RPM boosting power output and engine longevity.
Key Features
- Super Alloy Forging: One-piece construction withstands extreme cylinder pressures and temperatures in boosted 2JZ applications
- Chrome Polished Exhaust Face: Mirror polish on exhaust side rapidly dissipates heat lowering valve stem temperatures by up to 100 degrees F
- Swirl Polished Stems: Micro-finished 6.98mm stems reduce friction guide wear and oil consumption for consistent valve action
- Precision Sizing: 30.0mm head diameter 110.22mm overall length 1.90mm margin and 8mm x 45-degree seat ensure drop-in fit with stock or upgraded heads
- Enhanced Keepers: Thickened keeper grooves lock securely preventing valve float at 9000+ RPM
Product Notes
- Complete set of 12 exhaust valves covers full bank replacement
- Pair with GSC valve springs and titanium retainers for optimal results
- Ships in protective foam-lined box to prevent damage
Installation Notes
- Professional installation recommended.
- Check valve to piston clearance especially with aftermarket pistons or cams
- Compatible with OEM guides seals and springs use 0.012-0.014 inch exhaust lash
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1993-2005 | Lexus | GS300 | Base |
| 2001-2005 | Lexus | IS300 | Base |
| 2002-2005 | Lexus | IS300 | Sportcross |
| 1992-2000 | Lexus | SC300 | Base |
| 1993-1998 | Toyota | Supra | Base |
| 1993-1998 | Toyota | Supra | Twin Turbo |
Why Choose GSC Power-Division?
- Proven in drag racing and drift with 2JZ builds worldwide
- Machined in USA with aerospace-grade materials and tolerances
- Backed by detailed engineering data and real-world dyno testing
Frequently Asked Questions
-
Q: Will these fit both 2JZ-GE and 2JZ-GTE heads?
A: Yes identical port design and dimensions make them direct replacement for NA and turbo 2JZ variants -
Q: What finish is on the exhaust side?
A: Chrome polished finish reflects heat away from the valve improving dissipation and reducing melt risk -
Q: Do they require special springs?
A: Work with stock springs but GSC dual springs recommended for high boost over 25psi
Shipping & Handling
- Method: UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Foam protected box 12in x 8in x 2in
- Weight: 1.9 lbs
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