Kibblewhite 20-21100 Racing Valve Spring Kit 0.600" Lift Aluminum Retainers Harley Shovelhead

The Kibblewhite 20-21100 KPMI Racing Valve Spring Kit is engineered for high-performance Harley-Davidson Shovelhead engines requiring enhanced valvetrain reliability at increased lift. This complete spring kit supports up to 0.600" valve lift, making it ideal for modified engines with aggressive camshaft profiles.

Key Features:

• Designed specifically for 1979-1984 Harley-Davidson Big Twin Shovelhead engines
• Supports up to 0.600" valve lift for high-performance camshafts
• Includes lightweight aluminum valve spring retainers to reduce valvetrain mass
• High-tension racing springs prevent valve float at elevated RPM
• Complete kit includes springs, retainers, and hardware for valve job
• Precision-manufactured to KPMI Racing specifications

Kibblewhite Precision Machining Inc. (KPMI) is a trusted name in performance valvetrain components. This racing spring kit provides the valvetrain control needed for modified Shovelhead engines with performance camshafts, ensuring reliable valve operation and preventing costly engine damage from valve float or spring failure.