GSC Power-Division S2 camshafts for the Subaru EJ257 Dual AVCs. These cams are built to suite the high horsepower Subys. With a power range of 500WHP and up, you need some certain mods to utilize the true potential of the S2s. Built motor, with a built/ported head, and a good engine management system.
Dual valve springs are recommended, but a upgraded single spring kit will do the job under 8000 rpm.
**Due to the lobe size, some head castings may need to be filled down slightly for clearance.
Intake 272 / 234 @ .040" / Peak Lift 11.0MM / Centerline AVCS
Exhaust 272 / 232 @ .040" / Peak Lift 10.9MM / Centerline AVCS
