COMP Cams Single Spring Valve Spring Set # CC981-16COMP Cams Single Spring Valve Spring Set # CC981 16 Valve Springs, Single, 1. 254 in. Outside Diameter, 370 lbs. in. Rate, 1. 150 in. Coil Bind Height, Set of 16 Number of Springs Per Valve: Single Outside Diameter of Outer Spring (in): 1. 254 in. Coil Bind Height (in): 1. 150 in. Damper Spring Included: Yes Spring Rate (lbs in): 370 lbs. in. Inside Diameter of Outer Spring (in): 0. 880 in. Valve Spring Style: Standard Valve Springs Coated: No