{"product_id":"mcs524513","title":"Kibblewhite KPMI, Valve Spring Kit. .655\" Lift. Steel Top Collars – 1984–1999 Evo Big Twin; 1999–2004 Twin…","description":"\u003ch2\u003eKibblewhite KPMI, Valve Spring Kit. .655\" Lift. Steel Top Collars – 1984–1999 Evo Big Twin; 1999–2004 Twin…\u003c\/h2\u003e\n\u003cp\u003eHigh lift high pressure spring kit. Reduces total valve train mass. Great for high performance \u0026amp; racing performance builds. The dual springs are manufactured from the highest quality clean chrome silicone wire; shot peened and heat treated for maximum fatigue life. Kit includes dual springs with internal damper to give a wider range of harmonic reduction; upper collars; lower collars; valve keys and seals. Max valve lift: .655\". Installed height: 1.810\". Seat pressure 185 lbs. Open pressure: 450 lbs. @ .655\" 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 524513\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kibblewhite","offers":[{"title":"Default Title","offer_id":57377358348675,"sku":"MCS524513","price":237.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/524513k_1018cab5-aa55-49e1-83a9-dd899f0c2541.jpg?v=1775579887","url":"https:\/\/hogparts.com\/products\/mcs524513","provider":"Hogparts UK Ltd","version":"1.0","type":"link"}