Valves springs retainers locks seals maxmum lift .550 in installed at 1.750 in. Guide od .530 in valves stainless steel. 8 x 2.02 inlet valves 8 x 1.6 exhaust valves, 16 x valve springs, inc 16 x dampers, 16 x retainers, 32 x locks, 16 x viton .530 stem seals. Outer spring diameter 1.260 inch, spring rate 358 lbs.in, inner diameter of outer spring .875. In steel 7 degrees locks, single groove steel retainers, viton stem seals .530.in 3, installed height 1.750 seat pressure at installed height 125 lbs open height 1.200 in open pressure 325 lbs
