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ECE R 90 approved
999 km or miles
Used between rocker cover and cylinder head
HEIGHT: 17
KPMI, valve spring kit. .415" lift. Steel top collars - 66-E79 Shovelhead (NU) 561172 ECE R 90 approvedReduces total valve train mass. Great for OEM rebuilds with stock specifications. The springs are manufactured from the highest quality clean chrome silicone wire, shot peened and heat treated for maximum fatigue life. Kit includes springs, upper collars, lower collars, and valve keys. Max valve lift: . 415. Installed height: 1. 375". Seat pressure 129 lbs. Open pressure: 272 lbs. @ . 415 valve lift. Note: With . 565" diameter valve guides.
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