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SKU: 7008S2 | UPC: GSC7008S2
GSC P-D Mitsubishi Evolution 4-8 4G63 S2 Cams 274/274 Billet
GSC Power-Division S2 camshafts upgrade Mitsubishi Lancer Evolution 4-8 models with 4G63 DOHC engines. This matched set features 274 degree advertised duration intake and exhaust for strong power delivery from mid to high RPM. Drivers gain noticeable horsepower with proper supporting mods like valve springs and tuning.
Key Features
- Billet 8620 Cores: Heat treated steel construction handles extreme RPM and stress for reliable long-term use
- 274° Duration: Advertised intake/exhaust duration with 252° @ 0.050 inch drives airflow for RPM power
- 10.90mm Lift: 0.429 inch intake/exhaust lift fills cylinders with more air for combustion gains
- Superfinished Lobes: Polished surfaces cut friction and wear while improving break-in and durability
- Back-Cut Lobes: 3/4 ramp design smooths transitions to reduce valvetrain noise and stress
Product Notes
- Pair with GSC valve springs PN 7013.00 or equivalent rated 80 lbs minimum seat pressure at 1.9 inch installed height
- Inspect piston to valve clearance and adjust timing if needed during cam swap
- Store in dry area and avoid impacts to cores before installation
Installation Notes
- Professional installation recommended.
- Set cold valve lash to 0.010 inch intake and 0.010 inch exhaust
- Works with OEM rocker arms though GSC chromoly rockers handle higher lift better
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1996-1998 | Mitsubishi | Lancer Evolution | IV (CN9A) |
| 1998-1999 | Mitsubishi | Lancer Evolution | V (CP9A) |
| 1999-2001 | Mitsubishi | Lancer Evolution | VI (CP9A) |
| 2001-2002 | Mitsubishi | Lancer Evolution | VII (CT9A) |
| 2003-2005 | Mitsubishi | Lancer | Evolution VIII |
| 2003-2005 | Mitsubishi | Lancer | Evolution MR |
| 2003-2005 | Mitsubishi | Lancer | Evolution RS |
Why Choose GSC Power-Division?
- USA-made with CNC grinding for exact profiles and tolerances
- Race-tested in rally autocross and drag applications worldwide
- Dyno data backs consistent power across 4G63 builds
Frequently Asked Questions
-
Q: Do these cams fit 2005 Lancer Evolution MR or RS?
A: Yes direct bolt-on for all Evo 4-8 4G63 DOHC including 2003-2005 USDM Lancer Evolution MR and RS -
Q: What material and finish do the cams have?
A: Billet 8620 alloy steel cores with full heat treatment plus superfinished and back-cut lobes -
Q: What supporting parts are required?
A: GSC springs 7013.00 valve lash adjustment and ECU tune professional install advised for best results
Shipping & Handling
- Method: UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Protective cardboard tube dimensions 33 x 4 x 4 inches
- Weight: 9 lbs
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