{"product_id":"bikeman-performance-big-bore-stroker-air-extreme-pro-r","title":"Bikeman Performance Big Bore Stroker + Air Extreme \/ Pro R","description":"\u003cp\u003eThe Bikeman Performance Crate Engine provides the ultimate performance and reliability for your Pro R RZR. This 2.3L Naturally Aspirated engine offers a smooth idle and daily drivable manners. When you are ready to roll into the throttle, the engine is full of low end punch and comes to life in the high RPM's. The high flow CNC cylinder head and high lift camshaft allow this engine to accelerate its 395hp aggressively to 9000 rpm. Lean into the throttle on an dirt road and the power and sound experience is liberating. All this with the peace of mind that you are commanding a durable and reliable engine.  Power level is quoted based on pump gasoline and slip-on muffler and stock header.  Race pieces will increase output. \u003c\/p\u003e\n\u003cp\u003eWe ship worldwide.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eEngine is fully assembled and includes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBored and Sleeved Cylinders\u003c\/li\u003e\n\u003cli\u003e 4340 billet crank, 78mm stroke, BC ProH2K rods (4.915\" c-to-c), custom CP Pistons\u003c\/li\u003e\n\u003cli\u003eOversize +1mm intake and exhaust valves (+4mm exhaust for full race version) for maximum airflow\u003c\/li\u003e\n\u003cli\u003eHD exhaust springs\u003c\/li\u003e\n\u003cli\u003eExhaust spring retainers\u003c\/li\u003e\n\u003cli\u003eExhaust spring keepers\u003c\/li\u003e\n\u003cli\u003e.430 lift high performance cams\u003c\/li\u003e\n\u003cli\u003eCustom CNC porting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBig power that loves to rev!\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003cstrong\u003eHard Flash is REQUIRED with this kit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"product attribute overview\"\u003e\n\u003cdiv class=\"value\"\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(232, 51, 59);\"\u003e\u003cstrong\u003eVEHICLE FITMENT:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e• POLARIS RZR PRO R : 2022+\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Bikeman Performance","offers":[{"title":"Buy Engine Outright","offer_id":44995749118127,"sku":null,"price":25395.95,"currency_code":"USD","in_stock":true},{"title":"Send In Good Core","offer_id":44995749150895,"sku":null,"price":16595.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0682\/9939\/1151\/files\/image_50756865h.webp?v=1742379075","url":"https:\/\/relentlesspowersports.com\/products\/bikeman-performance-big-bore-stroker-air-extreme-pro-r","provider":"Relentless Powersports","version":"1.0","type":"link"}