{"product_id":"mcs524623","title":"Kibblewhite KPMI, Beehive Valve Spring Kit. Steel. .610\" Lift – 1984–2004 Big Twin; 1986–2003 XL…","description":"\u003ch2\u003eKibblewhite KPMI, Beehive Valve Spring Kit. Steel. .610\" Lift – 1984–2004 Big Twin; 1986–2003 XL…\u003c\/h2\u003e\n\u003cp\u003eWith steel top \u0026amp; lower collars. Reduces total valve train mass. Reduces total valve train mass. Great for stock \u0026amp; moderate performance builds. The one-piece Beehive style springs are manufactured from the highest quality clean chrome silicone wire; shot peened and heat treated for maximum fatigue life. Kit includes steel upper collars; lower collars and valve keys. Works with stock 7\/16\" valve stems. Max valve lift: .610\". Installed height: 1.860\". Seat pressure 175 lbs. Open pressure: 400 lbs. @ .610\" valve lift. Note: Does not include valve guide seals.\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003e84-04 Big Twin; 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 524623\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kibblewhite","offers":[{"title":"Default Title","offer_id":57377359757699,"sku":"MCS524623","price":139.72,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/524623k_fb9967e9-cf99-484b-928e-a79f07f4d7b5.jpg?v=1775579873","url":"https:\/\/hogparts.com\/products\/mcs524623","provider":"Hogparts UK Ltd","version":"1.0","type":"link"}