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The Manley valve spring for Mitsubishi 4G63 engines is a high-performance valvetrain component engineered for modern sport-compact applications. Wound from clean alloy and specified to support aggressive cams, these springs are built to provide reliable valvetrain control at elevated RPM. They are intended for demanding turbocharged or naturally aspirated setups where sustained revving and valvetrain stability are required.
Manley Mitsubishi 4G63 00in/.775in Valve Spring (Single)
