
Manley 16-piece valve spring kit for 1990–2006 Mitsubishi 4G63 and 4G63T engines provides valvetrain stability for high-revving sport compact applications. Engineered from premium alloys, these springs are wound from super-clean alloy and designed to handle aftermarket camshafts, with the package rated to rev up to 10,000 RPM when used with Manley titanium retainers for demanding turbocharged or naturally aspirated setups.
Manley 90-06 Mitsubishi (4G63-4G63T) 16pc Valve Springs (1.100/.775)