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SKU: 2069-01
GSC Power-Division Toyota 2JZ 30.0mm Head (+1mm) 6.6mm Stem Chrome Alloy Polished Exhaust Valve - Single (1993-2005)
Enhance your 2JZ engine's exhaust performance with this GSC Power-Division single exhaust valve featuring a 30.0mm head diameter. It fits 1993-2005 Toyota 2JZ-GE and 2JZ-GTE engines in models like Supra GS300 SC300 and Aristo. The oversized head and polished finish improve flow efficiency and heat dissipation for reliable power gains in high-rev builds.
Key Features
- 30.0mm Head Diameter (+1mm): Increases exhaust port flow over stock 29.0mm for quicker turbo spool and higher horsepower
- 6.6mm Stem Diameter: Matches OEM specs for drop-in compatibility with factory valve guides and springs
- Chrome Alloy Construction: One-piece forged design with chrome-plated stem resists galling corrosion and high exhaust temperatures
- Swirl Polished Head: Bead blasted and swirl polished surface reduces turbulence enhances velocity and valve life
- Hardened Tip 109.22mm Length: Protects against guide wear overall length ensures precise fit in 2JZ cylinder heads
Product Notes
- Sold individually full engine requires 12 exhaust valves for DOHC 24-valve setup
- Works with OEM seals keepers and retainers no modifications needed
- Ideal for naturally aspirated boosted or high-RPM 2JZ applications
Installation Notes
- Professional installation recommended.
- Check valve-to-piston clearance due to +1mm head resize as needed
- Standard valve lash 0.35-0.40mm exhaust compatible with GSC spring kits
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1993-1998 | Toyota | Supra | 2JZ-GTE |
| 1991-2000 | Lexus | GS300 | 2JZ-GE |
| 1992-2000 | Lexus | SC300 | 2JZ-GE |
| 1993-2005 | Toyota | Aristo | 2JZ-GE / 2JZ-GTE |
Why Choose GSC Power-Division?
- Racing-developed design proven in drag strip and circuit 2JZ builds
- USA-manufactured with micron-level tolerances for consistent performance
- Backed by enthusiasts worldwide for 2JZ reliability under boost
Frequently Asked Questions
-
Q: Does this fit 1993-1998 Toyota Supra 2JZ-GTE?
A: Yes fits all 93-98 Supra 2JZ-GTE models plus GS300 SC300 Aristo 2JZ-GE/GTE verify head type -
Q: What finish and material details?
A: One-piece forged chrome alloy swirl polished head bead blasted exhaust finish hardened tip for extreme heat cycles -
Q: What warranty and install tips?
A: Limited lifetime warranty against defects professional install ensures proper seating check clearances for +1mm head
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Protective foam sleeve in small box 6x4x1 inches
- Weight: 0.11 lbs
GSC Power Division
GSC Power Division is a manufacturer of precision-engineered camshafts, valve springs, and valvetrain components designed for high-performance and competition engines across domestic, import, and diesel platforms. Founded by engineers with deep roots in motorsport, GSC Power Division components are machined to exacting tolerances and heat-treated to survive the demands of forced induction and high-rpm applications that destroy stock valvetrain parts. The brand is particularly well-known in the Mitsubishi Evo, Subaru STI, Nissan RB, and Toyota 2JZ communities where aggressive camshaft profiles are essential for extracting maximum power from turbocharged four-cylinder and six-cylinder engines. Whether building for drag racing, road course competition, or a high-powered street car, GSC Power Division camshafts and valve springs are a proven upgrade path. Popular Upgrades GSC Power Division S1, S2, and S3 camshafts are the most popular selections, with each profile offering progressivel...
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