{"product_id":"s-s-cycle-90-1004-s-s®-super-stock®-cylinder-head-kit-for-3-1-2-and-3-5-8-bore-hd®-1984-99-big-twins-natural-aluminum-finish","title":"S\u0026S Cycle 90-1004 S\u0026S® Super Stock® Cylinder Head Kit For 3-1\/2\" and 3-5\/8\" Bore HD® 1984-'99 Big Twins - Natural Aluminum Finish","description":"\u003ch1\u003eS\u0026amp;S Cycle 90-1004\u003c\/h1\u003e These S\u0026amp;S\u003csup\u003e®\u003c\/sup\u003e Super Stock\u003csup\u003e®\u003c\/sup\u003e cylinder heads for 1984-'99 HD\u003csup\u003e®\u003c\/sup\u003e Evolution\u003csup\u003e®\u003c\/sup\u003e Big Twin engines feature a specially shaped combustion chamber and require special pistons that must be purchased separately. (Not compatible with stock style flat topped pistons) Large 2.000\" intake and 1.605\" exhaust valves and high flowing ports supply plenty of air for big inch engines. Compatible with cams with lifts up to .650\". Compatible with stock 3-1\/2\" or 3-5\/8\" bore engines. Order appropriate gasket kits separately for your specific bore size. Natural aluminum finish. \u003ca href=\"https:\/\/www.sscycle.com\/content\/document_center\/Instruction_Sheets\/51-1042_sscylinderheads_evo_sport.pdf\" target=\"_blank\" alt=\"Download Instructions\"\u003eInstall Instructions Download\u003c\/a\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":53260695404851,"sku":"SS+90-1004","price":1949.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/6764\/5747\/files\/ss-90-1004-ss-cycle-90-1004-ss-super-stock-cylinder-head-kit-for-3-1-2-and-3-5-8-bore-hd-1984-99-big-twins-natural-aluminum-finish-2.png?v=1776709082","url":"https:\/\/houseofharley.com\/es\/products\/s-s-cycle-90-1004-s-s%c2%ae-super-stock%c2%ae-cylinder-head-kit-for-3-1-2-and-3-5-8-bore-hd%c2%ae-1984-99-big-twins-natural-aluminum-finish","provider":"House of Harley®","version":"1.0","type":"link"}