SKU: 5064
GSC Power-Division Conical Valve Spring and Ti Retainer Kit for Toyota 2JZ-GTE and 1JZ-GTE (1991-2005)
This GSC Power-Division kit includes 24 conical valve springs and 24 titanium retainers designed for Toyota 2JZ-GTE and 1JZ-GTE engines. It fits models like Supra JZA80, Aristo JZS147/JZS161, and JZX100 Chaser/Mark II/Cresta Tourer V. Engineered for high RPM and boost with natural harmonic damping to reduce valvetrain stress and extend component life.
Key Features
- Conical Design: Varying coil diameter and spacing damps harmonics better than cylindrical or beehive springs for stable valvetrain at extreme RPM
- Seat Pressure: 2JZ 84 lbs at 1.316" install height, 1JZ 97 lbs at 1.278" for consistent control under boost
- Open Pressure: 2JZ 221 lbs at 0.903", 1JZ 223 lbs at 0.896" at 10.50mm lift supports aggressive cams
- Max Valve Lift: 2JZ 0.453", 1JZ 0.415" with coil bind at 0.807" allows full motion without interference
- Performance Limits: Rated to 10,000 RPM and 50 PSI boost with super finished surface and multi-step heat treatment for durability
Product Notes
- Verify valve spring install heights using GSC calculator before installation
- Super finished springs reduce wear in modified engines pushed to limits
- Ships in secure protective packaging to prevent damage
Installation Notes
- Professional installation recommended.
- Set precise install heights: 2JZ 1.316", 1JZ 1.278" for optimal pressures
- Compatible with stock or aftermarket valvetrain hardware. check retainer fit
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1993-2002 | Toyota | Supra | JZA80 2JZ-GTE |
| 1991-2000 | Toyota | Aristo | JZS147 2JZ-GTE |
| 1997-2005 | Toyota | Aristo | JZS161 2JZ-GTE |
| 1996-2001 | Toyota | Chaser Tourer V | JZX100 1JZ-GTE |
| 1996-2001 | Toyota | Mark II Tourer V | JZX100 1JZ-GTE |
| 1996-2001 | Toyota | Cresta | JZX100 1JZ-GTE |
Why Choose GSC Power-Division?
- Industry-leading designs proven in drag racing and high-boost street builds
- Titanium retainers and treated springs deliver reliability at 10,000 RPM
- Precision engineering reduces stress for longer life in modified 2JZ and 1JZ engines
Frequently Asked Questions
-
Q: Does this kit fit US-spec Toyota Supra MK4?
A: Yes, direct fit for 1993-1998 2JZ-GTE Supra JZA80 with correct install height of 1.316" -
Q: What materials are used in the springs and retainers?
A: High-strength steel conical springs with super finish and patented heat treatment, paired with lightweight titanium retainers -
Q: What is the warranty on this valve spring kit?
A: GSC offers a lifetime warranty against spring failure when installed and used per specifications
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Secure foam-packed box, 11.5 x 9 x 3.5 inches
- Weight: 4.9 lbs
Engine
Engine parts and engine bay upgrades for Dodge, Jeep, RAM, Chrysler, Chevrolet, Ford, Toyota, Nissan, Subaru, and Honda vehicles are stocked at Black Ops Auto Works. Shop oil catch cans, supercharger pulleys, thermostats, radiators, cooling parts, throttle bodies, intake manifolds, headers, ignition coils, spark plugs, sensors, gaskets, fuel pumps, valve covers, engine covers, billet cap covers, and full engine bay dress-up parts for HEMI, Hellcat, Trackhawk, Redeye, Demon, Scat Pack, RAM TRX, LS, LT, Coyote, EcoBoost, K-Series, and 2JZ builds. 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 14,298 engine SKUs across performance, cooling, oil control, ignition, and appearance categories. What This Category Covers The Engine collection combines OEM-replacement engine service parts with performance aftermarket upgrades for supercharged, turbocharged, and naturally aspirated builds...
View Engine Products
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
Valve Springs, Retainers
Valve springs and retainers for high-RPM and boosted engine builds are stocked at Black Ops Auto Works. Shop dual and single valve springs, beehive-style valve springs, titanium and chromoly retainers, and matched spring-and-retainer kits for HEMI, LS, Coyote, K-series, EJ, and 2JZ platforms. 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 406 valve spring and retainer SKUs across spring rate, seat pressure, and material categories. What This Category Covers The Valve Springs, Retainers collection spans upgraded valve springs for higher lift camshafts, beehive-style springs for reduced valvetrain mass, and titanium retainers that shed weight from the reciprocating valvetrain. The catalog is strongest on Supertech valve springs and retainers for import four-cylinder builds, with broad coverage of dual spring kits for domestic V8 platforms running aggressive camshaft profiles. Cat...
View Valve Springs, Retainers 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


