Beehive valve springs with lightweight titanium retainers for use with billet cams. 80 seat pounds and 240 pounds @.500 lift. To be used with stainless valves and roller rockers. Safe for 9500+ rpm

NOTE*** When using these springs with oem stamped steel rockers, rockers may fail. Please use appropriate locks that are included in the kit. These will break an intek head if not reinforced. These will also break stock valves

These springs require a taller install height and must be used with our valves. Will not work with stock length valves