GSC Power Division billet S3 camshafts for the Subaru EJ207 version 7 and above with single AVCS. These camshafts are designed for drag use only, fully built engines with a power range of 750-1,300 WHP and an RPM range of 4,500-9,500. Certain engine modifications are required to utilize the true potential of the S3s: built bottom end (closed deck or sleeved), built/ported head, all supporting fueling upgrades, and aggressive dyno tuning. Upgraded valve springs arerequired. GSC Power Division S3 Camshaft EJ207
Cylinder head clearancing required.
Please maintain 0.020" (0.5mm) minimum clearance from the cylinder head casting