Kibblewhite Valve Spring Kit, 0.440-Inch Lift, Lightweight Racing for Honda (30-31050)

Upgrade your Honda engine’s valvetrain with the Kibblewhite 30-31050 Valve Spring Kit, engineered for lightweight racing applications and reliable performance with standard and oversized valves. This complete kit is designed to support valve control at lifts up to 0.440 inch, making it a practical choice for performance engine builds that require carefully matched spring components.
The Kibblewhite spring kit includes precision-engineered valve springs and titanium upper collars, with lower collars included where required for the application. Each component is selected to work together as a complete valvetrain solution for one engine, helping simplify installation and maintain consistent spring and retainer compatibility. The lightweight design helps reduce valvetrain mass, supporting responsive operation in demanding racing environments.
This Kibblewhite 30-31050 kit is supplied complete for one motor and is made in the U.S.A. Keepers are not included, so verify that the required keepers and application-specific components are available before installation. Confirm valve size, lift, and cylinder head compatibility to ensure proper fitment and correct valvetrain setup.

Features:

• Brand: Kibblewhite

• Part Number: 30-31050

• Application: Honda performance engines

• Maximum Valve Lift: 0.440 inch

• Design: Lightweight racing valve spring kit

• Compatibility: Engineered for standard and oversized valves

• Included Components: Springs, titanium upper collars, and lower collars where required

• Coverage: Complete kit for one motor

• Keepers: Not included

• Country of Manufacture: Made in the U.S.A.

Ships from Parts Unlimited.