{"product_id":"tk680-conical-valve-spring","title":"TK545 Conical Valve Spring","description":"\u003cp\u003eConical valve springs made with ovate wire gives superior high rpm stability with extra longevity for hydraulic or solid roller camshafts looking to maximize performance on the street and track.\u003c\/p\u003e\n\u003cp\u003eSpring Rate: 545 Lbs\/In\u003c\/p\u003e\n\u003cp\u003eInstalled Height: 1.900 = 150 Lbs      Lift .650\" = 508 Lbs   Approximate Distance to Bind .050\u003c\/p\u003e\n\u003cp\u003eSolid Height: 1.200 (Approximately) Will Vary Slightly\u003c\/p\u003e\n\u003cp\u003eBottom OD 1.440\"  Bottom ID: .990\"\u003c\/p\u003e\n\u003cp\u003eTop OD 1.100\"  Top ID: .650\u003c\/p\u003e\n\u003cp\u003ePrice for single spring\u003c\/p\u003e\n\u003cp\u003eNote: Use PAC R-310 or similar Retainer\u003c\/p\u003e","brand":"10K Technology","offers":[{"title":"Default Title","offer_id":45180377235635,"sku":null,"price":26.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/1970\/0147\/files\/image0_2.jpg?v=1772815796","url":"https:\/\/10k-technology.com\/products\/tk680-conical-valve-spring","provider":"10K Technology","version":"1.0","type":"link"}