{"product_id":"kpmi-valve-spring-kit-600-lift-aluminum-top-collars","title":"KPMI, valve spring kit. .600\" lift. Aluminum top collars","description":"\u003cp\u003eReduces total valve train mass. Great for high lift racing performance builds. The springs are manufactured from the highest quality clean chrome silicone wire; shot peened and heat treated for maximum fatigue life. Kit includes springs; upper collars; lower collars; and valve keys. Max valve lift: .600\". Installed height: 1.510\". Seat pressure 152 lbs. Open pressure: 387 lbs. @ .600\" valve lift. Note: Does not include valve guide seals.\u003c\/p\u003e","brand":"Kibblewhite","offers":[{"title":"Default Title","offer_id":53081039929672,"sku":"524476","price":185.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2711\/4344\/files\/524476.jpg?v=1778685025","url":"https:\/\/holydeath.com\/products\/kpmi-valve-spring-kit-600-lift-aluminum-top-collars","provider":"Holy Death Motorcycle Co.","version":"1.0","type":"link"}