Spring Kt.660"84-04Evo/Tc 20-21500

Beehive Valve™ Spring Kit

Progressively wound springs using Kobe super-clean, chromium silicon(CrSi) based wire that is heat treated and shot peened

Tight-tolerance, FEA-designed hardened steel Posi-Loc™ style upper or titanium retainers to ensure correct assembly height and resist keeper "pull through"

Heat treated (H.T.) steel basewashers are designed to fit on top of either the OEM or KPMI tophat seals in this kit

Made in the USA

Kit uses OEM-style valve keys (sold separately).

'23-'24 CVO's check valve lift to deteremine compatibility with Kibblewhite Precision Machining Inc. (KPMI®) spring kits.

Kit Includes: • 4x CrSi Valve springs • 4x H.T. Steel Retainers • 4x H.T. Steel Keepers (9° Taper) • 4x H.T. Steel Basewashers