Mitsubishi Evo X 4B11 Ferrea Dual Valve Spring Kit

Mitsubishi Evo X 4B11 Ferrea Dual Valve Spring Kit

Mitsubishi Evo X 4B11 Ferrea Dual Valve Spring Kit is an uprated valve-spring package for the listed engine application.

Upgraded springs improve valve control at increased engine speed, boost pressure and camshaft acceleration, reducing the risk of valve float. The spring specification is application matched for performance cylinder-head use.

• Part number: KT4014
• Manufacturer / series: Ferrea
• Part type: Valve-spring kit

Installation and fitment: Installed height, seat pressure, open pressure, coil-bind clearance, retainer-to-seal clearance and camshaft lift must all be checked during cylinder-head assembly. Matching retainers and seats may be required.

Please confirm the exact engine code and required size against part number KT4014 before ordering.