COMP Cams Valve Spring 1.300in Gm LS1 Du - cca26921-1

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 : cca26921-1 Description : Race Valve Springs; Single Piece Title : 26921-1 Valve Spring, 1.300" GM LS1 DU AL California Proposition 65 : WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov Coil Bind Height : 1.04 Compatible .570" Guide Diameter Spring Seat : 4731-1 Compatible Retainer : 754-1 Compatible Shims : 4753 Compatible Spring Cup (O.D. Locator) : 4709-1 Damper : No Inner Spring Inside Diameter : 0.655 Number of Springs : 2 Outer Spring Inside Diameter : 0.895 Outer Spring Outside Diameter : 1.32 Seat Height : 1.77 Seat Pressure : 135 Spring Rate : 408 Spring Type : Double Installed Pressure(lbs) : 135 Outside Diameter(in) : 1.3 Position : N/A Inside Diameter(in) : 0.655 Open Pressure(lbs) : 400 Camshaft Type : OEM Spring Rate(lbs/in) : 408 Coil Bind Height(in) : 1.04 Installed Height(in) : 1.77 Open Height(in) : 1.12 Engine Components::Valve Springs, Retainers