Kibblewhite Valve Spring Kit, 0.350-Inch Lift, Lightweight Racing, Honda (30-30590)

The Kibblewhite 30-30590 Valve Spring Kit is engineered for Honda performance applications requiring reliable valve control with a 0.350-inch lift profile. Designed for lightweight racing use, this complete kit combines carefully matched valve springs with titanium upper collars to support consistent valvetrain operation under demanding engine conditions. Kibblewhite components are manufactured in the U.S.A. with a focus on performance, fitment, and durability.
This spring kit is designed for use with both standard and oversized valves, helping provide application flexibility for performance engine builds. Lower collars are included where required for the intended application, while the included components are configured to service one motor. The kit is a practical choice for builders seeking upgraded valve spring performance without sourcing the primary spring and collar components separately.
Keepers are not included and must be selected separately according to the cylinder head, valve, and retainer configuration. Confirm application compatibility and required valvetrain components before installation. With its lightweight racing design and Honda-specific fitment, the Kibblewhite 30-30590 Valve Spring Kit provides a dependable foundation for high-performance valve train assembly.

Features:

• Application: Designed for Honda performance engines

• Lift Profile: Engineered for 0.350-inch valve lift

• Design: Lightweight racing valve spring kit

• Components: Includes valve springs and titanium upper collars

• Lower Collars: Included where required for the application

• Valve Compatibility: Suitable for standard and oversized valves

• Kit Coverage: Complete spring kit for one motor

• Keepers: Not included

• Origin: Made in the U.S.A.

Ships from Parts Unlimited.