COMP Cams Dual Spring Valve Spring Set # CC986-16 Valve Springs, Dual, 1.430 in. Outside Diameter, 322 lbs./in. Rate, 1.150 in. Coil Bind Height, Set of 16 Valve Spring Style: Standard Number of Springs Per Valve: Dual Maximum Valve Lift (in.): 0.540 in. Retainers Included: No Outside Diameter of Outer Spring (in.): 1.430 in. Coil Bind Height (in.): 1.150 in. Damper Spring Included: Yes Spring Rate (lbs/in.): 322 lbs./in. Inside Diameter of Outer Spring (in.): 1.070 in. Inside Diameter of Inner Spring (in.): 0.697 in. Locks Included: No Valve Stem Seals Included: No Valve Springs Coated: No Remanufactured: No Quantity: Sold as a set of 16. Notes: Machine work may be required to cylinder heads.