GSC Billet R1 Camshafts – Mitsubishi Evo 4–8 (GSC7008R1)
Midrange Power and Quick Response for Track-Ready 4G63 Builds
The GSC Power Division billet R1 camshafts (PN GSC7008R1) are designed for Mitsubishi Evo 4–8 platforms seeking aggressive midrange performance and sharp throttle response. With a high-lift profile and shorter duration, these cams are optimized for a usable RPM band between 3,500–7,500 RPM, making them ideal for autocross and circuit-style setups.
- Target Powerband: 3,500–7,500 RPM
- Application: Track, autocross, and responsive street builds
- Valve Springs: Requires upgraded springs and titanium retainers; GSC5041 Ti retainer spring kit recommended
- Compatibility: Works with OEM rocker arms and zero-tick or factory lifters
- Manufacturing: Precision billet construction, made in the USA
Camshaft Specs
| Camshaft | ADV Duration | Duration @ 0.040" | Peak Lift | Center Line |
|---|---|---|---|---|
| Intake | 268° | 222° | 11.00mm | 109° |
| Exhaust | 268° | 222° | 11.00mm | 115° |
Installation Tip
If you're using aftermarket cam gears—especially AEM—check bolt clearance. Some gear designs may require a 40mm underhead bolt due to increased thickness.
Fitment:
- 1996 - 1998 Mitsubishi Lancer Evolution IV 2.0L Turbo (4G63T)
- 1998 - 1999 Mitsubishi Lancer Evolution V 2.0L Turbo (4G63T)
- 1999 - 2001 Mitsubishi Lancer Evolution VI 2.0L Turbo (4G63T)
- 2001 - 2003 Mitsubishi Lancer Evolution VII 2.0L Turbo (4G63T)
- 2003 - 2005 Mitsubishi Lancer Evolution VIII 2.0L Turbo (4G63T)
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
