COMP Cams Valve Springs, Retainers 1737-16 7 Degree Tool Steel Retainer Set of 16, 8mm Valve w/ 26926 Springs in Viper V10 CNC-machined for consistency, these 7 degree lightweight tool steel retainers feature light weight, exceptional strength and wear characteristics. Fit Dodge V10 Viper engines with 1.290" OD springs such as our 26926 dual springs. COMP Cams RetainersTool Steel 26926 On