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Engines and Components› Camshafts and Valvetrain

GSC Power-Division

S2 Camshaft Set for EJ257 Dual AVCS

$1,245.50 $1,058.68 Save $186.82

SKU: GSC7026S2

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In Stock
Ships by Sep 13
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$100 Minimum Order
30 Days Return
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Overview

The GSC Power-Division S2 Camshaft Set is a performance camshaft designed for the Subaru EJ257 engine with Dual AVCS. These billet cams are engineered for high horsepower applications, targeting a power range of 500 WHP and up. The S2 cams feature a 272° ADV duration for both intake and exhaust, with a peak lift of 10.80mm on the intake and 10.50mm on the exhaust.
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The GSC Power-Division S2 Camshaft Set is a performance upgrade for the 2008+ Subaru STI EJ257 engine equipped with Dual AVCS. These billet camshafts are specifically designed to support higher horsepower builds, aiming for a power range of 500 WHP and above. To fully realize the potential of the S2 cams, several supporting modifications are necessary, including a built engine, a built/ported cylinder head, and a robust engine management system. Upgraded valve springs are mandatory for proper operation; while beehive valve springs are recommended, they are not strictly required. Installation requires careful attention. Cam placement should be confirmed using the provided pictures, with a long nose indicating the left side and a short nose indicating the right side. Due to the lobe size, slight filing of the head castings may be necessary for clearance, and this should be checked during the installation process. Additionally, proper break-in procedures and the use of high-zinc oil are crucial for flat tappet engines. It is strongly recommended that these camshafts be installed by an experienced technician.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandGSC Power-Division
Part NumberGSC7026S2
CategoryEngines and Components

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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