{"product_id":"s-s-cycle-cylinder-heads-79cc-black-for-twin-cam-90-1293","title":"S\u0026S Cycle Cylinder Heads 79CC - Black for Twin Cam [MPN: 90-1293]","description":"\u003cdiv class=\"wrap-collapsibleMM\"\u003e\n\u003cinput id=\"collapsibleDescriptionMM1cf2b7dd\" class=\"collapsibleDescriptionMM toggleMM\" type=\"checkbox\"\u003e\u003clabel for=\"collapsibleDescriptionMM1cf2b7dd\" class=\"lbl-toggleMM\"\u003eProduct Description\u003c\/label\u003e\u003cdiv class=\"collapsible-contentMM\"\u003e\u003cdiv class=\"content-innerMM\"\u003e\n\u003cp\u003eSuper Stock™ Cylinder Heads\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh port flow gives great performance now, and more later when additional upgrades are done\u003c\/li\u003e\n\u003cli\u003eHeads are fully assembled with springs and valves, and are available in silver or wrinkle black powder-coat\u003c\/li\u003e\n\u003cli\u003eCompression ratios vary depending on cylinder heads chosen, pistons used and engine displacement; see Compression Ratios chart for specifications\u003c\/li\u003e\n\u003cli\u003e79cc heads work great with stock motors for 88\" to 103\" motors; 89cc heads work best for motors over 103\" or with high-compression pop-up pistons\u003c\/li\u003e\n\u003cli\u003e79cc have 1.940\" intake and 1.575\" exhaust valve and springs for up to .640\" lift; 89cc have 2.000\" intake and 1.605\" exhaust and .640\" springs\u003c\/li\u003e\n\u003cli\u003e79cc heads accept OEM rocker boxes\u003c\/li\u003e\n\u003cli\u003e79cc and 89cc heads require S\u0026amp;S Lower Rocker Box Gasket Kit (0934-4574)\u003c\/li\u003e\n\u003cli\u003eHeads are machined for compression releases (sold separately); S\u0026amp;S rocker boxes required when using S\u0026amp;S compression releases\u003c\/li\u003e\n\u003cli\u003eDo not include rocker arm components, intake manifold or gaskets\u003c\/li\u003e\n\u003cli\u003eAccept OEM intake manifolds\u003c\/li\u003e\n\u003cli\u003eSold in pairs\u003c\/li\u003e\n\u003cli\u003eMade in the U.S.A.\u003c\/li\u003e\n\u003cli\u003eMust use S\u0026amp;S rocker boxes (PART #90-4110) if S\u0026amp;S compression releases are used.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":46850910847163,"sku":"CCP-493416","price":1776.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/5230\/6875\/files\/226641_0_48.jpg?v=1754751604","url":"https:\/\/motomentum.com\/products\/s-s-cycle-cylinder-heads-79cc-black-for-twin-cam-90-1293","provider":"Motomentum","version":"1.0","type":"link"}