SKU: 7008R1
GSC Mitsubishi Evolution 4-8 4G63T Billet R1 Camshafts 268/268
GSC Power-Division Billet R1 Camshafts deliver aggressive 268-degree intake and exhaust duration for Mitsubishi Lancer Evolution 4-8 models with 4G63T engines. These drop-in cams increase valve lift and airflow at high RPMs to produce substantial horsepower gains on turbocharged setups. Built for enthusiasts seeking track-ready performance without sacrificing drivability.
Key Features
- Billet 8620 Construction: Provides exceptional strength and durability under extreme valvetrain stresses for reliable high-RPM operation
- 268 Degree Duration: Intake and exhaust profiles optimize overlap and breathing for peak power above 6500 RPM
- 11.50mm Intake / 10.80mm Exhaust Lift: Maximizes airflow volume through increased valve opening for turbo spool and top-end pull
- Lobe Centers (108° Intake / 114° Exhaust): Balances mid-range torque with explosive high-RPM power delivery
- Direct Bolt-On Design: Precision-ground lobes ensure perfect fitment without machine work or custom timing adjustments
Product Notes
- Pair with upgraded valve springs like GSC S1 or higher for safe operation above stock RPM limits
- Follow GSC break-in procedure using high-quality assembly lube for longest cam lobe life
- Special order item expect 7-14 day lead time for production and delivery
Installation Notes
- Professional installation recommended.
- Verify timing belt condition and replace if worn during cam swap
- Compatible with stock or aftermarket DOHC heads no additional hardware needed
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1996-1998 | Mitsubishi | Lancer | Evolution IV |
| 1998-1999 | Mitsubishi | Lancer | Evolution V |
| 1999-2001 | Mitsubishi | Lancer | Evolution VI |
| 2001-2003 | Mitsubishi | Lancer | Evolution VII |
| 2003-2005 | Mitsubishi | Lancer | Evolution VIII |
Why Choose GSC?
- Proven in professional drag racing and time attack with multiple championship wins
- Hand-finished in the USA with tight tolerances for consistent performance
- Custom lobe designs based on dyno testing and customer feedback
Frequently Asked Questions
-
Q: Will these cams fit Evolution 9 models?
A: Designed specifically for Evo 4-8 4G63T heads Evo 9 compatibility requires head measurement confirmation -
Q: What material are the camshafts made from?
A: Billet 8620 alloy cores with nitrided surfaces for maximum wear resistance and strength -
Q: What is the warranty and install requirements?
A: 1-year unlimited mileage warranty requires professional installation and proper break-in
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Secure foam-lined box 29 x 8 x 6 inches
- Weight: 11.8 lbs
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