Kibblewhite
KPMI, valve spring kit 600" lift Steel top collars
KPMI, valve spring kit 600" lift Steel top collars
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Steel upper valve spring collars. Installed spring pressure 165 lbs. Kibblewhite Precision Engineering racing valve spring kit for standard 7mm diameter valve stems. Chrome multiple-parts silicone spring set; steel top collars and steel lower collars. Includes valve seals. Note: Does not include a valve key set; OEM must be re-used. Note: See 524994 for replacement valve seals.
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Why buy from Forty5°
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Verified compatibility
Every part we ship is checked against your bike's platform, year, and engine. If it doesn't fit, we tell you before you check out.
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Workshop installation
Book a serviceHave us fit it. Book installation at parts intake — same-day on most jobs, master techs only.
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Founder-led aftersales
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