GSC Power-Division Billet Camshafts | Evo 4-8

GSC 7000 Series Full Billet Camshafts are 100% in-house cut and ground on the newest, most precise CNC machines available.  The 7000 Series camshafts take the import valve train market to another level, being the only readily available and affordable billet camshafts for sport compact/ import performance cars.  

The lobe profiles are still the same spec GSC Power-Division is known for worldwide, giving the best power gains and smoothest drivability out of anyone in the industry.  Appearance wise the new dark nitride coating aids in wear/fatigue resistance, lubricity, and superior corrosion resistance. The 7000 Series camshafts have raised the bar and will be the cams that all others will be judged against.

S1: The GSC Power-Division billet S1 cams for the Mitsubishi Evo 4-8 are designed for those with the stock turbo up to the 550 WHP stock location or aftermarket turbo kits. These cams will not sacrifice any bottom end loss over stock cams; nothing but gains, and will promote faster spooling of the upgraded turbos. Gains of 30-55 WHP (depending on turbo) have been seen by simply bolting the S1 cams in.

• Designed for a rev range of 3000-7500 RPMs
• These cams work well on the stock valve springs with lower boost and RPM goals
• Idle is slightly rougher than stock 
• Made 100% in the USA

S2: The GSC Power-Division billet 7008S2 cams for the Mitsubishi Evo 4-8 are designed for those with a goal of 400-700 WHP. No low end power is lost vs. the stock cams when used with the larger turbos. The S2 cams will show gains of 50-70 WHP over the stock cams, and in some cases more in the higher RPMs. Great for 2.0L engines with stock frame turbos revving to 9000 RPMs or for stroker motors revving to 8000 RPMs. The S2 cams are suggested to run on GSC's upgraded beehive valve spring replacement or full beehive valve spring kit with Titanium retainer.

• Designed for a rev range of 4000-9000 RPMs (2.0L or 3000-8000 2.2L+)
• S2 cams can run on Factory ECU with custom flashing
• Made 100% in the USA

S3: The GSC Power-Division billet S3 cams for the Evo 4-8 4G63 are meant for 800+ WHP to take advantage of a very large turbo. These are NOT suggested for anyone running smaller than the 67mm to GT42R turbo.

R2: The 7008R2 is a high lift, very aggressive profile, with a short overall duration to keep a lower usable RPM band. The 7008R2 is designed to rev between 4000-8500 RPMs and should be used with a stroked engine or added displacement engine. The peak lift of 12.0mm intake and exhaust will require upgraded valve springs and a titanium retainer with special attention to seal to retainer clearance. With the lift of this profile, it is suggested to only use the 5041/5040 Ti retainer and spring kits due to valve seal to retainer clearance. The 5041 can be used to 40+psi and the 5040 to 32psi on the R2 profile at 8500 RPMs without float or flutter issues. The profile will work fine on the OEM rocker arm and the zero-tick lifter, or with the OEM lifter. We have seen gains of 25-30 WHP over the S2 profile on the stroked applications, with much more possible when used with a ported head and aftermarket intake manifold.

NOTE: **If using aftermarket cam gears (especially AEM) check the bolt length. Some cam gears are too thick for the OEM bolt on the billet cams, a 40mm underhead length bolt may be necessary in this case**