Single Outer Valve Springs from COMP Cams allow you to build the perfect spring assembly for your application. The valve spring creation process is far more involved than most people realize. Selecting the right metal stock and creating the best design is not done by chance. COMP Cams has developed a process that creates the highest quality valve spring available. The result is a product that meets and exceeds the expectations of today’s engine builders and racers. PartNumber : cca984-16 Description : Single Outer Valve Springs; 16 Pieces Title : 984-16 Valve Springs, 1.430" Outer w/Damper California Proposition 65 : WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov Coil Bind Height : 1.15 Compatible Retainer : 744-16 Compatible Shims : 4754 Compatible Spring Cup (O.D. Locator) : 4704-16 Damper : Yes Number of Springs : 1 Outer Spring Inside Diameter : 1.07 Outer Spring Outside Diameter : 1.43 Seat Height : 1.75 Seat Pressure : 105 Spring Rate : 200 Camshaft Type : Mechanical Coil Bind Height(in) : 1.15 Installed Height(in) : 1.75 Position : Outer Spring Type : Single Installed Pressure(lbs) : 105 Inside Diameter(in) : 1.07 Outside Diameter(in) : 1.43 Open Height(in) : 1.25 Spring Rate(lbs/in) : 231 Open Pressure(lbs) : 220 Engine Components::Valve Springs, Retainers