-15%
Click to zoom in
SKU: 2064-12 | UPC: GSC2064-12
GSC P-D Toyota 2JZ 21-4N Chrome Polished Intake Valve - 34.6mm Head (+1mm) - Set of 12 for 1992-2005 Lexus GS300 IS300 SC300 Toyota Supra
Equip your Toyota 2JZ engine with GSC Power-Division chrome polished intake valves featuring a 34.6mm head diameter plus 1mm over stock for enhanced airflow and power. This set of 12 one-piece forged valves fits 1992-2005 Lexus GS300 IS300 SC300 and Toyota Supra models with 2JZ-GE or 2JZ-GTE heads. Built from high-strength 21-4N stainless steel they withstand extreme boost and RPM for reliable performance in street and track builds.
Key Features
- 21-4N Stainless Steel Construction: Forged from heat-resistant alloy that maintains strength above 1600°F ideal for turbocharged 2JZ applications
- Chrome Polished Tip and Keeper Groove: Minimizes guide wear and friction for longer life and smoother valve action
- 34.6mm Head Diameter (+1mm): Oversized design boosts intake flow by up to 10% supporting 1000+ HP builds
- Precision Dimensions: 7.95mm stem diameter 105.85mm overall length matches OEM tolerances for drop-in compatibility
- Complete Set of 12: Full intake valve kit for DOHC inline-6 2JZ engines ensures balanced airflow across all cylinders
Product Notes
- Pair with GSC valve springs retainers and seals for complete valvetrain upgrade
- Inspect valve guides and seats before installation to ensure proper clearance
- Ships in protective foam-lined box to prevent damage during transit
Installation Notes
- Professional installation recommended.
- Set valve lash to 0.007-0.009 inch intake per 2JZ specs after install
- Compatible with OEM or aftermarket retainers and locks no modifications needed
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?
- Engineered by motorsport experts for 2JZ drag and drift champions
- USA-made quality with rigorous testing for durability under boost
- Exact fit precision machined for seamless integration in high-rev builds
Frequently Asked Questions
-
Q: Will these valves fit both 2JZ-GE and 2JZ-GTE heads?
A: Yes they are direct fit for all DOHC 2JZ heads in listed Lexus and Toyota models no machining required -
Q: What material are these valves made from?
A: 21-4N stainless steel forged for superior heat resistance and strength in turbo setups over 30 psi -
Q: What is the warranty and install process?
A: Backed by GSC one-year warranty professional install advised includes valve removal grinding seats and lash adjustment
Shipping & Handling
- Method: UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Foam-lined protective box 12 x 6 x 4 inches
- Weight: 2.1 lbs
GSC Power Division
GSC Power Division camshafts and valvetrain parts for turbocharged import engines are stocked at Black Ops Auto Works. Shop camshafts, valve springs, retainers, valves, and head studs engineered for the Toyota 2JZ, Nissan RB26 and VR38DETT, Mitsubishi 4G63, Subaru EJ257 and FA20, and Honda K20 platforms. Every product is filterable by engine code, cam grind, and application so the correct part ships the first time. Black Ops Auto Works carries 407 GSC Power Division SKUs across camshaft, valvetrain, and engine internal categories. What This Brand Covers GSC Power Division is a specialist engine internals brand focused on camshafts, valve springs, retainers, and valves engineered specifically for high output turbocharged import engines. The catalog is built around specific engine codes rather than complete vehicles, which means the same part often applies across multiple chassis that share an engine platform. Brand Focus GSC Power Division designs valvetrain components for engine...
View GSC Power Division Products
Valves
Engine valves for import, domestic, and European performance builds are stocked at Black Ops Auto Works. Shop intake valves, exhaust valves, single-groove and triple-groove valves, Inconel and titanium valves, and complete valve sets for 2JZ, RB26, RB25, VR38DETT, K-series, EA888, EA113, FA20, S58, B58, and HEMI 5.4L and 5.7L applications. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 577 valve SKUs across intake, exhaust, and material specification categories. What This Category Covers The Valves category covers replacement and upgraded intake and exhaust valves for naturally aspirated, turbocharged, and supercharged cylinder heads. Coverage spans budget-focused OE-spec valves through race-grade Inconel and titanium valves built for sustained high RPM and boosted horsepower. Categories Included Intake valves, exhaust valves, single valves sold individually, and full valve set...
View Valves Products
Valves & Components
Valves and valvetrain components for import, domestic, and performance engine platforms are stocked at Black Ops Auto Works. Shop intake valves, exhaust valves, valve covers, valve cover gaskets, valve guides, valve springs, retainers, valve locks, valve seals, and lash caps for Toyota 2JZ and Supra, Honda K-Series, Nissan RB and SR20, BMW B58 and S58, Subaru FA20, Ford Coyote, and GM LS platforms. Every part is filterable by year, make, model, and engine so builders and tuners can confirm fitment before ordering. Black Ops Auto Works carries 1,391 valvetrain SKUs from proven performance brands. What This Category Covers Valves and valvetrain components manage airflow into and out of the combustion chamber and keep the valvetrain sealed and stable at high RPM. This collection spans intake valves, exhaust valves, valve covers, valve cover gaskets, valve guides, valve springs, retainers, valve locks, valve seals, lash caps, and cam follower shims. Why the Valvetrain Matters for Pe...
View Valves & Components Products