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Manley Performance valve springs for Mitsubishi 4G63/4G63T DOHC 16-valve engines are offered as a 16-piece set sized to match specified installed heights. Engineered for high-revving sport-compact applications, these springs are wound from premium alloy to support aggressive cam profiles and valvetrain stability; paired retainers and design intent allow the valvetrain to withstand elevated RPM demands noted in the product materials.
Manley Mitsubishi (4G63-4G63T DOHC 16 Valve) 16pc Valve Springs (1.160/.870)
