Upgrade your engine's valve train with this high-performance Kibblewhite Valve Spring Kit. Engineered for both standard and oversized valves, this kit provides enhanced valve control and stability, optimizing your engine's performance and reliability. Description This Kibblewhite Valve Spring Kit delivers superior performance and durability. The kit includes high-quality springs and titanium upper collars, with lower collars included where necessary. Engineered for use with both standard and oversized valves, this kit ensures optimal valve control and helps prevent valve float, especially at higher RPMs. The chrome-silicon springs offer excellent resistance to fatigue and maintain consistent performance under extreme conditions. Upgrade your valve train with this complete kit, designed to maximize your engine's potential. Made in the U.S.A., this kit offers quality and precision. Features & highlights Enhances valve control and stability for improved engine performance. Optimized for both standard and oversized valves. Durable chrome-silicon springs resist fatigue and maintain consistent performance. Titanium upper collars reduce weight and improve valve train dynamics. Complete kit includes all necessary components for one motor (excluding keepers). Proudly made in the U.S.A. Technical specifications Brand: Kibblewhite Product Name: Valve Spring Kit Material: Chrome-Silicon Collar Material: Titanium Application: Exhaust, Intake Spring Seat Pressure: Intake 55 lb, Exhaust 46 lb Spring Open Pressure: Intake 151 lb, Exhaust 119 lb Spring Lift: Intake 0.395", Exhaust 0.370" Units: Kit Important to know Keepers are not included. This spring kit is designed for one motor.