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SKU: 7010S1
GSC P-D 4B11T 08+ Evo 10 Dual Mivec S1 Cams 264/264 Billet
GSC Power-Division S1 camshaft set delivers precise cam timing for the 4B11T Dual MIVEC engine in 2008+ Mitsubishi Lancer Evolution X. These billet cams feature 264/264 degree primary duration to increase horsepower and torque throughout the RPM range while maintaining throttle response. Direct replacement retains factory variable valve timing for seamless integration.
Key Features
- Billet 8620 Cores: High-strength construction ensures durability under high-RPM abuse and resists flex for consistent valve timing.
- 264/264 Primary Duration: 10.20mm intake / 9.70mm exhaust lobe lift with 240/240 duration at 1mm provides broad power gains from 3500-8000 RPM.
- Secondary Lobes 256/256 Duration: 8.51mm intake / 8.25mm exhaust lift optimized for low-end torque and smooth idle with OEM valvetrain.
- Dual MIVEC Compatible: Factory VVT actuators bolt on directly preserving variable valve timing across operating range.
- USA Made Precision Grind: CNC ground profiles match OEM base circle for drop-in fit with no valvetrain modifications required.
Product Notes
- Designed for stock valve springs and retainers. no upgrades needed for street or track use up to 350whp.
- Apply assembly lube during installation and follow 500-mile break-in with conventional oil.
- Ships in protective sleeves to prevent damage. store horizontally if not installing immediately.
Installation Notes
- Professional installation recommended.
- Replace timing belt water pump and tensioner during cam swap for reliability.
- Compatible with OEM cam gears and sprockets. torque to factory specs using angle method.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2008-2015 | Mitsubishi | Lancer | Evolution GSR |
| 2008-2015 | Mitsubishi | Lancer | Evolution MR |
| 2009-2015 | Mitsubishi | Lancer | Ralliart |
| 2010-2011 | Mitsubishi | Lancer | Ralliart Sportback |
Why Choose GSC Power-Division?
- Field proven in World Rally Championship and drag racing Evo builds.
- Engineered for daily drivable power with track-ready reliability.
- Made in USA with tight tolerances exceeding OEM standards.
Frequently Asked Questions
-
Q: Will these cams fit my 2008-2015 Evo X MR with 4B11T engine?
A: Yes fits all 2008-2015 Lancer Evolution X models with Dual MIVEC 4B11T turbo including GSR and MR. bolts to factory cam carriers. -
Q: What material are the camshafts made from?
A: Billet 8620 alloy steel cores with nitrided surfaces for wear resistance and heat-treated lobes. -
Q: Do I need upgraded valve springs for installation?
A: No S1 cams work with stock springs up to 350whp. GSC S2 or higher may require springs.
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Protective sleeves in 30 x 6 x 6 inch box
- Weight: 5.8 lbs
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