{"product_id":"s-s-cycle-90-1371","title":"S\u0026S Cycle 84-99 BT Super Stock Cylinder Heads - Polished Aluminum Finish","description":"\u003cp\u003eThese S\u0026amp;S® Super Stock® high performance cylinder heads are designed specifically for early production S\u0026amp;S® T124 engines for 1999-'06 HD® big twins. Heads are machined for the S\u0026amp;S® cylinder stud pattern used on S\u0026amp;S® Special Application crankcases. 2.000\" intake and 1.605\" exhaust valves coupled with S\u0026amp;S® ports, supply plenty of air for these big motors. Machined for S\u0026amp;S® electric or manual compression releases. The manifold mounting surface machined to stock specifications so special length manifold\/throttle body is required for engines that are not stock height. S\u0026amp;S® High performance valve springs allow the installation of camshafts with up to .650\" lift. Compatible with stock rocker boxes, exhaust, and intake manifolds.\u003c\/p\u003e\u003cp\u003eGenuine S\u0026amp;S Cycle. Part number 90-1371.\u003c\/p\u003e\u003cp\u003eImported to order from our US supply partner — allow 7-14 days delivery.\u003c\/p\u003e","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":62173601628547,"sku":"90-1371","price":1783.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1018\/6506\/2787\/files\/d0337504a8ba0359f733a5c58322ab94.png?v=1785042002","url":"https:\/\/www.mlperformance.co.uk\/products\/s-s-cycle-90-1371","provider":"ML Performance","version":"1.0","type":"link"}