Billet S3 Camshaft set for EJ207 JDM/EURO WRX & STi V7+
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 are required.

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 are required.
- Cylinder head clearancing required.
- Please maintain 0.020" (0.5mm) minimum clearance from the cylinder head casting
7027S3 | ADV Duration | Duration @ 0.040" | Peak Lift | Center Line |
Intake | 280° | 240° | 11.55mm | 130° |
Exhaust | 280° | 241° | 11.60mm | 115° |
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