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The GSC Power Division Billet S1 camshaft kit is a billet S1 profile listed as 268/268 and intended for early Mitsubishi Evolution 1–3 and DSM 4G63T engines from 1990–1999. This camset offers a discrete S1 timing choice in durable billet construction for enthusiasts updating their valvetrain to a factory-style but performance-minded cam profile for street and track-supporting builds.
GSC P-D 4G63T EVO 1-3/ DSM 90-99 S1 Cams 268/268 Billet
