COMP Cams Valve Spring For 990-974 - cca994-1

Dual Valve Springs from COMP Cams are manufactured from Super Clean wire and subject to extensive quality control testing to deliver a valve spring assembly with superior strength, durability and valve train stability, no matter what the application. The dual spring design creates a stronger valve spring that can easily handle the increased lift found in extreme stress applications. COMP Cams Dual Valve Springs exceed the expectations of today’s engine builders and racers. PartNumber : cca994-1 Description : Dual Valve Spring Assemblies; Single Piece Title : 994-1 Valve Spring, for 990-974 California Proposition 65 : WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov Coil Bind Height : 1.065 Compatible Retainer : 740-1 Compatible Shims : 4754 Compatible Spring Cup (O.D. Locator) : 4704-1 Damper : Yes Inner Spring Inside Diameter : 0.697 Number of Springs : 2 Outer Spring Inside Diameter : 1.073 Outer Spring Outside Diameter : 1.437 Seat Height : 1.7 Seat Pressure : 102 Spring Rate : 367 Position : N/A Outside Diameter(in) : 1.437 Coil Bind Height(in) : 1.02 Open Height(in) : 1.1 Camshaft Type : Mechanical Inside Diameter(in) : 0.697 Spring Rate(lbs/in) : 351 Installed Height(in) : 1.55 Installed Pressure(lbs) : 153 Spring Type : Double Open Pressure(lbs) : 311 Engine Components::Valve Springs, Retainers