Billet S3 Camshaft set for Subaru EJ257 Dual AVCS # GSC7026S3


Available on back-order

  • GSC7026S3
  • SUBARU EJ255/7B

Available on back-order

SKU: GSC7026S3 Categories: , , Tags: , , , ,


GSC Power-Division billet S3 camshafts for the 08+ Subaru STi EJ257 with Dual AVCS. These cams are built to suit the high horsepower drag Subis. With a power range of 750-1000 WHP and a rev range of 4500-9500 RPMs, you need some certain mods to utilize the true potential of the S3s: built motor, with a built/ported head (clearanced for lift), and a standalone engine management system. Upgraded valve springs are required; beehive valve springs are recommended but not required.

Check Pictures for cam placement. Long nose = Left Side, short nose = Right Side
Due to the lobe size, head castings will need to be filed down slightly for clearance – Please check during install
Proper break in and running high zinc oil is a must on flat tappet engines
Must be installed by an experienced technician
Check AVCS advance during install – must be done by experienced engine builder



Additional information

Weight 10 kg
Dimensions 80 × 22 × 12 cm


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