
Manley valve spring and retainer kit for 1990–1999 Mitsubishi 4G63/4G63T DSM DOHC engines supplies matched chrome‑silicon springs and precision retainers to support aggressive cam profiles. With a listed max lift of 0.460", these kits are engineered for durability, fatigue resistance and stable valve control at elevated RPMs, making them suitable for high‑rev builds and racing valvetrain applications.
Manley 90-99 Mitsubishi 4G63-4G63T DSM DOHC 16 Valve Spring and Retainer Kit (w/o Valve Locks) (16 e