GSC +1mm Super Alloy Exhaust Valve 6.6mm Stem Toyota 2JZ-GE / GTE (30mm) GSC2069-01
Built for Extreme Heat and High Horsepower 2JZ Applications
The GSC Power-Division +1mm Super Alloy Exhaust Valve with a 6.6mm stem is designed for Toyota 2JZ-GE and 2JZ-GTE engines pushing serious power and elevated exhaust gas temperatures. Featuring a 30mm head diameter, this valve is engineered to perform in setups reaching up to 2000°F.
Durability Meets Flow Efficiency
Each valve includes a chrome-polished stem for smoother motion and increased wear resistanceespecially when paired with GSC Manganese Bronze Valve Guides (GSC3113-12). The underhead dish is optimized for weight reduction, while the swirl-polished and backcut head design enhances airflow without compromising strength.
Important Compatibility Note
This valve must be used with GSC3113-12 Valve Guides and GSC1029 Valve Guide Seals to ensure proper fitment and performance.
Product Features
- Super alloy construction withstands extreme heat up to 2000°F
- +1mm oversized head for increased flow (30mm diameter)
- 6.6mm stem diameter for enhanced strength and guide compatibility
- Chrome-polished stem improves lubricity and longevity
- Swirl-polished and backcut head promotes efficient airflow
- Underhead dish reduces weight for better valvetrain response
Specifications
| Stem Diameter | Overall Length | Head Diameter |
|---|---|---|
| 6.6mm | 99.20mm | 30.00mm |
Fitment:
- 1993–1998 Toyota Supra 3.0L Twin Turbo DOHC (2JZ-GTE)
- 1993–2002 Toyota Supra 3.0L Non-Turbo DOHC (2JZ-GE)
- 1991–1997 Toyota Aristo 3.0L Twin Turbo DOHC (2JZ-GTE)
- 1992–2004 Toyota Crown / Chaser / Mark II / Cresta 3.0L DOHC (2JZ-GE)
- 1998–2005 Lexus GS300 3.0L DOHC (2JZ-GE)
- 2001–2005 Lexus IS300 3.0L DOHC (2JZ-GE)
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
