{"product_id":"mcs513883","title":"Manley Valve Spring Top Collar Set. Steel – 1936–1984 Big Twin","description":"\u003ch2\u003eManley Valve Spring Top Collar Set. Steel – 1936–1984 Big Twin\u003c\/h2\u003e\n\u003cp\u003eOEM style replacement precision machined steel valve spring top collars. Note: Manley suggests the use of 513884 titanium top collars on high lift applications. They provide increased strength and reduced inertia mass which allows you to run higher R.P.M.''s without valve float.\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003e36-84 Big Twin (NU)\u003c\/p\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Manley\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e MOTOR PARTS \u0026gt; VALVES COLLARS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct code:\u003c\/strong\u003e 513883\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Manley","offers":[{"title":"Default Title","offer_id":57359405351299,"sku":"MCS513883","price":41.07,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/513883k.jpg?v=1776033124","url":"https:\/\/hogparts.com\/products\/mcs513883","provider":"Hogparts UK Ltd","version":"1.0","type":"link"}