{"product_id":"comp-cams-valve-spring-1-550in-2-spring-cca917-1","title":"COMP Cams Valve Spring 1.550in 2 Spring - cca917-1","description":"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 : cca917-1 Description : Dual Valve Spring Assemblies; Single Piece Title : 917-1 Valve Spring, 1.550\" 2 Spring Assembly California Proposition 65 : WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov Coil Bind Height : 1.05 Compatible .570\" Guide Diameter Spring Seat : 4785-1 Compatible Retainer : 741-1 Compatible Shims : 4757 Compatible Spring Cup (O.D. Locator) : 4700-1 Damper : No Inner Spring Inside Diameter : 0.824 Number of Springs : 2 Outer Spring Inside Diameter : 1.136 Outer Spring Outside Diameter : 1.565 Seat Height : 1.8 Seat Pressure : 200 Spring Rate : 566 Coil Bind Height(in) : 1.05 Installed Pressure(lbs) : 200 Camshaft Type : Hydraulic Spring Type : Double Installed Height(in) : 1.8 Position : N\/A Open Height(in) : 1.1 Open Pressure(lbs) : 596 Outside Diameter(in) : 1.55 Spring Rate(lbs\/in) : 566 Inside Diameter(in) : 0.815   Engine Components::Valve Springs, Retainers ","brand":"COMP Cams","offers":[{"title":"Default Title","offer_id":42580688371967,"sku":"","price":17.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/1106\/2015\/products\/1ce4ab29799b8a7776d4a55a2b573f1b__91329.jpg?v=1647918937","url":"https:\/\/aristocrat-autosport-llc.myshopify.com\/products\/comp-cams-valve-spring-1-550in-2-spring-cca917-1","provider":"Aristocrat Autosport ","version":"1.0","type":"link"}