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GSC Power Division 08+ STi S3 Cams 282/282 Billet

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SKU: 0WQ9H
Billet S3 Camshaft set for Subaru EJ257 Dual AVCSThese cams are built to suite the high horsepower drag Subys. With a power range of 750-1000WHP and a rev range of...

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Billet S3 Camshaft set for Subaru EJ257 Dual AVCS

These cams are built to suite the high horsepower drag Subys. With a power range of 750-1000WHP and a rev range of 4500-9500rpms, 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.

Intake 282 / 240 @ .040" / Peak Lift 11.3mm / Centerline AVCS
Exhaust 282 / 240 @ .040" / Peak Lift 11.3mm / Centerline 113

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

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