{"product_id":"s-s-cycle-99-05-bt-super-stock-91cc-cylinder-heads-wrinkle-black","title":"S\u0026S Cycle 99-05 BT Super Stock 91cc Cylinder Heads - Wrinkle Black","description":"These S\u0026amp;S® Super Stock® high performance cylinder heads are designed specifically for late production S\u0026amp;S® T124 long block engines for 1999-'05 HD® big twins and 1999-'05 engines with S\u0026amp;S® 124\" Hot Set Up Kit installed. 2.000\" intake and 1.605\" exhaust valves coupled with S\u0026amp;S® ports, supply plenty of air for these big motors. The manifold mounting surface specially machined to compensate for the slighty taller cylinders, so a stock length manifold\/throttle body will fit. 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.","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":45171750011034,"sku":"SSC900-0470","price":1995.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/throwdownperformance.com\/products\/s-s-cycle-99-05-bt-super-stock-91cc-cylinder-heads-wrinkle-black","provider":"Throwdown Performance, LLC","version":"1.0","type":"link"}