SKU: 7003S1
GSC Power-Division 4G63T EVO 1-3 DSM 90-99 S1 Cams 268/268 Billet
GSC Power-Division S1 camshaft set features 268 degree duration intake and exhaust with 9.15mm lift on billet cores for 4G63T engines in 1990-1999 DSM vehicles and Evo 1-3. This drop-in upgrade works with stock valve springs and rocker arms to deliver strong power gains from 4500 RPM up while keeping idle quality and drivability intact. Expect up to 350 rear wheel horsepower potential on modified turbo setups.
Key Features
- Billet H13 Tool Steel Cores: Built tough for high boost and RPM abuse with no flex or failure risk
- 268 Degree Duration @ 1mm Lift: Boosts valve timing for improved mid-range torque and top-end pull
- 9.15mm Valve Lift Intake/Exhaust: Flows more air through the head for measurable horsepower increases
- Nitrided Lobe Surfaces: Cuts friction wear and maintains profile accuracy over thousands of miles
- +2mm Extended Nose Design: Matches DSM Evo timing chain perfectly for bolt-on timing accuracy
Product Notes
- Verify valve-to-piston clearance on high compression builds before final install
- Use with stock or upgraded valve springs rated for 9.15mm lift
- Ships in protective tube to prevent damage during transit
Installation Notes
- Professional installation recommended.
- Camshafts are fully finished and require no break-in period
- Compatible with stock DSM Evo head hardware and adjustable gears
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1990-1998 | Eagle | Talon | TSi |
| 1990-1994 | Mitsubishi | Eclipse | GS |
| 1990-1999 | Mitsubishi | Eclipse | GST |
| 1990-1999 | Mitsubishi | Eclipse | GSX |
| 1996-1999 | Mitsubishi | Eclipse | Spyder GST |
| 1991-1992 | Mitsubishi | Galant | VR-4 |
| 1990-1994 | Plymouth | Laser | RS |
| 1992-1996 | Mitsubishi | Lancer Evolution | I II III |
Why Choose GSC Power-Division?
- Camshafts proven on dyno and drag strip in DSM Evo race cars
- CNC ground lobes from premium H13 steel for exact profiles
- Backed by limited lifetime warranty against defects
Frequently Asked Questions
- Q: Will these cams fit 1990-1999 Mitsubishi Eclipse GSX?
A: Yes they directly fit all listed 4G63T DSM models including Eclipse GSX GST Talon TSi plus Evo 1-3 with no modifications - Q: What material are the camshafts made from?
A: Full billet H13 tool steel cores with nitrided lobes for strength and low friction - Q: What warranty comes with these cams?
A: Limited lifetime warranty covers manufacturing defects when installed and used properly
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock – ships same or next business day
- Packaging: Protective cardboard tube inside box measuring 26 x 7 x 7 inches
- Weight: 8 pounds





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