{"product_id":"bikeman-performance-ported-head-kit-pro-r-cnc-precision","title":"Bikeman Performance Ported Head Kit Pro R CNC Precision","description":"The ported head kit transforms a Polaris Pro R with oversized intake and exhaust valves, CNC‑precision porting, and a .430 lift cam for a dramatic horsepower boost. Engine airflow is maximized, delivering up to 330 hp at the crank and significantly higher torque for faster acceleration. The kit includes high‑performance cams, upgraded springs, seals, retainers and all necessary hardware for a complete head conversion. Install the kit on a 91‑octane engine for optimal performance, with optional race‑fuel mapping available.\u003cbr\u003e\u003cbr\u003e\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eEngine Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003ePolaris Pro R\u003c\/td\u003e\n  \u003c\/tr\u003e  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eValve Size Increase\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003e+4 mm intake, +1 mm exhaust\u003c\/td\u003e\n  \u003c\/tr\u003e  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eCam Lift\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003e.430 lift cam\u003c\/td\u003e\n  \u003c\/tr\u003e  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eHorsepower Gain\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003eUp to 330 hp\u003c\/td\u003e\n  \u003c\/tr\u003e  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eTorque Gain\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003eSignificant torque increase\u003c\/td\u003e\n  \u003c\/tr\u003e  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eIncluded Components\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003eHD exhaust springs, retainers, keepers, upgraded valves, CNC ported head, high‑performance cams\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Bikeman Performance","offers":[{"title":"Default Title","offer_id":52179778273581,"sku":"10-AX-402","price":10079.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0648\/1186\/0202\/files\/airxtreme_head_4b55afb2-74e5-42b1-aa1b-59c637661ef7.jpg?v=1782258086","url":"https:\/\/gorillaoffroad.com\/en-ca\/products\/bikeman-performance-ported-head-kit-pro-r-cnc-precision","provider":"Gorilla Offroad","version":"1.0","type":"link"}