Kibblewhite 40-40100 Lightweight Racing Valve Spring Kit

The Kibblewhite 40-40100 KPMI Lightweight Racing Valve Spring Kit is engineered for high-performance applications demanding maximum reliability and durability. This premium spring kit is designed to work with KPMI valve systems and is essential when using Black Diamond valves.

Key Features:

• Wound from premium Kobe Super-Clean Chrome Silicon wire for superior strength
• Heat-treated, stress relieved, and shot peened for maximum performance and longevity
• Lightweight racing design reduces valvetrain mass for higher RPM capability
• Engineered using advanced spring design simulation and analysis software
• Optimized for cam and spring harmonics, stress, mass, and operating RPM
• Required when installing KPMI Black Diamond valves

KPMI valve springs are manufactured to exacting standards and tested in demanding racing environments. The lightweight construction combined with premium materials delivers the perfect balance of spring pressure, durability, and valvetrain control for high-performance engines. Whether you're building a motocross engine revving to 14,000 RPM or a high-boost forced induction application, these springs are engineered to handle extreme conditions.

Note: This spring kit must be used when installing KPMI Black Diamond valves to ensure proper valvetrain operation and component longevity.