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SKU: 2071-8
GSC Power-Division Toyota 3S-GTE 23-8N Chrome Polished Exhaust Valve - 29mm Head (STD) - SET 8 for 1989-1999 Celica GT-Four ST185/ST205 and MR2 Turbo SW20
GSC Power-Division 2071-8 exhaust valves feature a 29mm standard head diameter and 7.95mm stem for Toyota 3S-GTE engines found in Celica GT-Four and MR2 Turbo models. This set of 8 valves supports high-revving builds with enhanced exhaust flow and heat resistance. Engine builders choose them for consistent performance in turbocharged applications.
Key Features
- Chrome Polished Finish: Provides excellent heat dissipation and reduces valve guide wear during extended high-heat operation
- 29mm Head Diameter (STD): Matches OEM dimensions for direct replacement while improving flow in performance heads
- One-Piece Forged Construction: Ensures strength under extreme boost and RPM without risk of failure common in multi-piece designs
- 7.95mm Stem Diameter: Precision ground for tight tolerances and smooth operation in stock or ported valve guides
- Set of 8 Exhaust Valves: Complete kit covers all exhaust positions for full rebuilds on 3S-GTE cylinder heads
Product Notes
- Valve length measures 102.54mm for exact fit in 3S-GTE heads without modifications
- Inspect valve seats and guides prior to installation for optimal sealing
- Ships in protective foam-lined box to prevent damage
Installation Notes
- Professional installation recommended.
- Requires valve seat cutting and lapping for new valves to achieve proper seal
- Compatible with stock valve springs up to 350whp. upgrade springs for higher boost
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1989-1999 | Toyota | MR2 | Turbo (SW20) |
| 1990-1994 | Toyota | Celica | GT-Four (ST185) |
| 1994-1999 | Toyota | Celica | GT-Four (ST205) |
| 1992-1997 | Toyota | MR2 | GT (JDM SW20 3S-GTE) |
| 1997-2002 | Toyota | Caldina | GT-Four (ST205) |
Why Choose GSC Power-Division?
- Proven in professional racing teams running 3S-GTE builds worldwide
- Manufactured from premium materials tested to 10,000 RPM durability
- CNC machined in the USA for exact OEM-spec fit and flow characteristics
Frequently Asked Questions
-
Q: Will this set fit my 1991-1995 US MR2 Turbo?
A: Yes, these 2071-8 valves are direct fit for all 3S-GTE cylinder heads in SW20 MR2 Turbo models from 1989-1999 including US spec -
Q: What material and finish do these valves have?
A: Forged from high-strength steel with a chrome polished finish on the stem and tulip for superior heat resistance and longevity -
Q: What is the warranty on GSC valves?
A: GSC offers a limited lifetime warranty against manufacturing defects when installed by a qualified engine builder
Shipping & Handling
- Method: Standard ground shipping
- Availability: In stock - ships same or next business day
- Packaging: Secure foam-lined box approximately 12x8x3 inches
- Weight: 1.1 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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