{"product_id":"s-s-cycle-90-1106-s-s®-super-stock®-89cc-cylinder-head-kit-for-1999-05-hd®-big-twins-black-wrinkle-powder-coat-finish","title":"S\u0026S Cycle 90-1106 S\u0026S® Super Stock® 89cc Cylinder Head Kit For 1999-'05 HD® Big Twins - Black Wrinkle Powder Coat Finish","description":"\u003ch1\u003eS\u0026amp;S Cycle 90-1106\u003c\/h1\u003e \u003cp\u003eThese S\u0026amp;S\u003csup\u003e®\u003c\/sup\u003e Super Stock\u003csup\u003e®\u003c\/sup\u003e high performance cylinder heads are designed for 1999-'05 engines with stock crankcase. They work well with engines of stock displacement , but are ideal for somewhat larger stroker or big bore engines up to 110\". The 89cc combustion chamber provides a slightly higher than stock, but still manageable compression ratio in larger than stock engines. This makes them a good choice for touring bikes and other heavy vehicles. The large 2.000\" intake and 1.605\" exhaust valves maintain port velecity for good low and midrange response, but supply enough air for slightly larger engines to perform to their full potential. S\u0026amp;S\u003csup\u003e®\u003c\/sup\u003e High performance valve springs allow the installation of camshafts with up to .650\" lift. Intake ports flow 264 cfm compared to stock heads at 182cfm. S\u0026amp;S\u003csup\u003e®\u003c\/sup\u003e High performance valve springs allow the installation of camshafts with up to .650\" lift. Compatible with stock rocker boxes, exhaust, and intake manifolds. Black wrinkle powder coat finish matches stock black engine components.\u003c\/p\u003e \u003ch3\u003eFITMENT DISCLAIMER\u003c\/h3\u003e\n\u003cp\u003eFitment information is provided as a general reference only and is not guaranteed for any motorcycle, whether stock or modified. Compatibility may vary by year, model, and individual configuration.\u003c\/p\u003e\n\n\u003cp\u003eCustomers are responsible for verifying fitment prior to purchase. House of Harley-Davidson assumes no liability for purchases made based on incorrect or unverified fitment information.\u003c\/p\u003e\n\n\u003cp\u003ePlease contact our Parts Department with any questions before ordering at \u003ca href=\"tel:4142822211\"\u003e414-282-2211\u003c\/a\u003e\u003c\/p\u003e","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":53260506825011,"sku":"SS+90-1106","price":1795.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/6764\/5747\/files\/ss-90-1106-ss-cycle-90-1106-ss-super-stock-89cc-cylinder-head-kit-for-1999-05-hd-big-twins-black-wrinkle-powder-coat-finish-2.png?v=1776707068","url":"https:\/\/houseofharley.com\/products\/s-s-cycle-90-1106-s-s%c2%ae-super-stock%c2%ae-89cc-cylinder-head-kit-for-1999-05-hd%c2%ae-big-twins-black-wrinkle-powder-coat-finish","provider":"House of Harley®","version":"1.0","type":"link"}