COMP Cams Valve Springs, Retainers 1732-12 10 Degree Tool Steel Retainer Set of 12 All Valves w/ 1.500"-1.550" O.D. Springs COMP Cams Lightweight Tool Steel Retainers for 1.500"-1.550" Diameter Valve Springs, 10? Angle, 1.450" Outside Diameter, Set of 12 COMP Cams Retainer Lite Wt Tool Stl 1.5