The Manley valve spring and retainer kit for Toyota 3UR-FE engines provides matched springs and titanium retainers with a listed maximum lift of 0.480" and specifies use of factory valve locks. It is intended for valvetrain replacement or camshaft work where the factory locks remain in use, offering components sized to the engine's requirements.
Manley Toyota 3UR-FE Valve Spring and Retainer Kit (Use factory valve locks)