GSC P-D Mitsubishi Evolution 4-8 4G63 S2 Cams 274/274 Billet

This product includes a set of GSC Power Division S2 camshafts specifically made for the 4G63 engine found in the 2005 Mitsubishi Lancer Evolution 4-8. These are billet camshafts, meaning they are machined from a solid piece of steel for improved strength and durability compared to cast cams. The S2 grind features a 274-degree intake duration and a 274-degree exhaust duration, designed to increase airflow into and out of the engine's cylinders, which can lead to noticeable gains in horsepower and torque, especially when combined with other engine modifications.

The 274 duration on both intake and exhaust is a popular choice for enthusiasts looking for a significant performance bump without sacrificing too much low-end drivability. This grind is well-suited for naturally aspirated or mildly boosted applications. Because these are billet cams, they offer a solid foundation for high-performance builds. Installation involves replacing your stock camshafts, and it's recommended to consult the manufacturer's installation guide for specific details and to ensure proper valve timing is set.

Please note that these camshafts are not CARB approved and cannot be shipped to California. They also carry a California Proposition 65 warning. For optimal performance, consider pairing these with upgraded valve springs and retainers, as the increased lift and duration may exceed the capacity of stock components.