valve spring kit. Steel. Std to .600" lift

Includes steel top collars, steel lowers, a beehive style spring set, early style seals and a seal installation tool. Can be used as a direct replacement from stock up to .550" lift. Machining is not required. Manley recommends the use of the included earlier style Viton oil seals and not the oil seal-lower collar set-up as used by The Factory. Pressure: 150lbs@1.800", 355lbs@1.200". Coil bind: 1.085".