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SKU: 5067
GSC Power-Division Toyota 3S-GTE Conical Valve Spring and Titanium Retainer Kit 1986-1999 Celica GT-Four MR2 Turbo (Shim Over/Shimless Bucket)
Upgrade your Toyota 3S-GTE engine with the GSC Power-Division Conical Valve Spring and Titanium Retainer Kit designed for 1986-1999 Celica GT-Four ST165 ST185 ST205 and MR2 Turbo SW20 models. This kit features conical springs that deliver progressive rates for smoother valve motion reduced mass and higher RPM capability up to 10 000. Paired with lightweight titanium retainers it minimizes valvetrain inertia for consistent performance in racing and high-rev street applications.
Key Features
- Conical Spring Design: Progressive dual rates reduce valvetrain harmonics allow 15.5mm lift and support revs over 10 000 RPM without fatigue
- Titanium Retainers: 9g per retainer cuts rotating mass improves durability and resists wear under extreme boost and heat
- Spring Specifications: Seat pressure 50lbs at 1.650in open 90lbs at 1.900in rate 195lbs/in coil bind 1.200in dimensions 0.465in x 1.781in x 0.850in ID
- Complete 16-Piece Kit: Includes 16 springs and 16 retainers for full DOHC valvetrain coverage direct replacement for OEM
- Shim Compatibility: Engineered exclusively for shim over or shimless bucket valvetrains common in performance 3S-GTE builds
Product Notes
- Verify valvetrain type before purchase must use shim over or shimless buckets not compatible with shim-under designs
- Super clean chrome silicon steel springs ensure longevity pair with GSC beehive seals for best results
- Kits ship disassembled in protective foam packaging to prevent damage
Installation Notes
- Professional installation recommended.
- Use quality valve spring compressor tool and check retainer locks for secure fit
- Compatible with stock buckets GSC chromoly or aftermarket titanium options torque to spec
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1986-1989 | Toyota | Celica | GT-Four ST165 3S-GTE |
| 1989-1993 | Toyota | Celica | All-Trac ST185 3S-GTE |
| 1989-1992 | Toyota | Celica | GT-Four ST185 3S-GTE |
| 1994-1999 | Toyota | Celica | GT-Four ST205 3S-GTE |
| 1990-1999 | Toyota | MR2 | Turbo SW20 3S-GTE |
| 1991-1999 | Toyota | MR2 Turbo | SW20 3S-GTE |
Why Choose GSC Power-Division?
- Proven in World Rally Championship and drag racing with ST205 and SW20 teams
- Made from premium materials with strict tolerances for zero defects
- Backed by engineering focused on high-boost turbo applications
Frequently Asked Questions
-
Q: Will this kit fit my 1995 ST205 GT-Four with stock valvetrain?
A: Yes it bolts on directly to 3S-GTE shim over or shimless bucket setups confirm your bucket type before install -
Q: What materials are used in the springs and retainers?
A: Springs from super clean chrome silicon steel retainers from aerospace-grade titanium for strength and low weight -
Q: What warranty covers this kit?
A: GSC offers a no-fail warranty on valve springs against fatigue when installed correctly contact GSC for details
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Compact box measures 9in x 7in x 3in with foam inserts
- Weight: 1.9 lbs
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