{"product_id":"mcs524504","title":"Kibblewhite KPMI, Valve Spring Kit. .600\" Lift. Steel Top Collars – 1984–1999 Evo Big Twin; 1999–2004 Twin…","description":"\u003ch2\u003eKibblewhite KPMI, Valve Spring Kit. .600\" Lift. Steel Top Collars – 1984–1999 Evo Big Twin; 1999–2004 Twin…\u003c\/h2\u003e\n\u003cp\u003eReduces total valve train mass. Great for stock \u0026amp; 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: 1.810\". Seat pressure 163 lbs. Open pressure: 361 lbs. @ .600\" valve lift.\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003e84-99 Evo Big Twin; 99-04 Twin Cam; 86-03 XL Sportster (NU)\u003c\/p\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Kibblewhite\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e MOTOR PARTS \u0026gt; VALVE SPRINGS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit:\u003c\/strong\u003e KIT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct code:\u003c\/strong\u003e 524504\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kibblewhite","offers":[{"title":"Default Title","offer_id":57377358250371,"sku":"MCS524504","price":154.19,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/524504k_1f5984f8-7ff7-4be0-8907-49e7b09666cb.jpg?v=1775579888","url":"https:\/\/hogparts.com\/products\/mcs524504","provider":"Hogparts UK Ltd","version":"1.0","type":"link"}