Dual Valve Spring Kit, 40lbs

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14340 Designed for high-lift cams in high RPM engines using stainless steel valves. May be run as outer spring only. These are extremely heavy duty springs for highly modified appl ications. Approximately 40lbs at .850 installed height. Will coil bind above .400 lift (solid height at .470") without spring pocket modification. * WILL NOT WORK WITH STOCK VALVES * WILL NOT WORK IN PREDATOR 212 HEMI WITHOUT MODIFYING CYLINDER HEAD* Show more