COMP Cams Valve Springs, Retainers 1718-1 10 Degree Tool Steel Retainer for All Valves w/ 26955, 26956 and 26957 Springs. CNC-machined for consistency, this 10 degree lightweight tool steel retainer features light weight, exceptional strength and wear characteristics. Fits engines with 1.437"-1.500" O.D. valve spring such as our 26955, 29656 and 26957 springs. COMP Cams Retainer Lite Wt Tool Stl 1.3