{"product_id":"polaris-rzr-xp-turbo-s-xr-series-11mm-direct-replacement-custom-age-625-head-stud-kit","title":"XR Series 11mm Custom Age 625 Head Stud Kit for Polaris RZR XP Turbo\/S, Pro XP, \u0026 Turbo R","description":"\u003ch1\u003eDESCRIPTION\u003c\/h1\u003e\n\u003cp\u003ePrevent premature head gasket failure on bigger power engines! The Evolution Powersports XR Series CA-625 11mm direct replacement Polaris XPT head studs are for those wanting the ultimate strength for high horsepower engine builds. Manufactured by ARP using their proprietary Custom Age alloy, the XR series head stud is the strongest head stud available anywhere. Custom Age 625 alloy typically equals or exceeds the clamping force of ~2mm larger 8470 Chromoly fastener in a smaller package. For the XP Turbo\/Pro XP engine where there is not much material in the block to enlarge the stud significantly, these 11mm Custom Age 625 studs are the ideal solution. These head studs will keep your engines head sealed for the boost pressure required to produce 300-400 horsepower.\u003c\/p\u003e\n\u003cp\u003eWhy the EVP XR Series CA-625 studs are superior to other studs on the market:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe 11mm (stock) OD is the ideal size to maximize clamping force without sacrificing block integrity\u003c\/li\u003e\n\u003cli\u003eMade from ARP CA-625 alloy - This super-alloy has superior fatigue cycle life, tensile strength and toughness and is rated to 260,000 psi tensile strength. For comparison, a typical 8470 chromoly stud is roughly 170,000 psi.\u003c\/li\u003e\n\u003cli\u003eMachined ball end allows the stud to bottom out in the case without losing any thread engagement.\u003c\/li\u003e\n\u003cli\u003eIncludes head studs, nuts, and washers for the ultimate direct replacement head stud kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003eXR SERIES\u003cbr\u003e\n\u003c\/h1\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eEvolution Powersports is proud to introduce the all-new XR Series! All the products in this \u003c\/span\u003e\u003cspan\u003eX\u003c\/span\u003e\u003cspan\u003etreme \u003c\/span\u003e\u003cspan\u003eR\u003c\/span\u003e\u003cspan\u003eacing line are race tested and have been designed and developed with extreme power and racing in mind. Many of the products are CNC machined and made from the highest quality materials available. Tested under the most grueling conditions in drag racing, short course \u0026amp; desert racing, these products ensure optimal performance and durability. Many of our new XR Series products are manufactured exclusively for EVP in partnership with some of the best names in the powersports industry.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch1\u003e\u003cspan\u003eFITMENT\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003e2020+ General All Models\u003cbr\u003e2024+ Xpedition Northstar \u0026amp; Ultimate Models\u003cbr\u003e2020+ Ranger 1000 Crew \u0026amp; Premium Models\u003cbr\u003e2024+ Ranger XP 1000 Crew \u0026amp; Northstar Models\u003cbr\u003e2020-2023 Ranger Crew 1000 Models\u003cbr\u003e2020-2023 Ranger Crew XP 1000 Models\u003cbr\u003e2020-2023 Ranger XP 1000 Models\u003cbr\u003e2020+ RZR 900 Models\u003cbr\u003e2025 RZR Pro S Models\u003cbr\u003e2020+ RZR Pro XP Models\u003cbr\u003e2022 RZR Trail 900 Premium Model\u003cbr\u003e2021+ RZR Trail S 1000 Models\u003cbr\u003e2022-2024 RZR Turbo R 2 \u0026amp; 4 Models\u003cbr\u003e2020-2021 RZR Turbo S Models\u003cbr\u003e2020+ RZR XP 1000 2 \u0026amp; 4 Models\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003ch1\u003eINSTRUCTIONS\u003c\/h1\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0054\/6786\/5134\/files\/XP_Turbo_S_Pro_XP_Turbo_R_11mm_Head_Stud_Kit_39c3c668-c5a3-43df-b72f-68a9ea1f4a16.pdf?v=1687540150\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eXP Turbo_S EVP Head Stud Kit\u003c\/a\u003e\u003c\/p\u003e","brand":"Evolution Powersports","offers":[{"title":"Default Title","offer_id":43944453734515,"sku":"3591020002","price":325.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/800FP0017-silver-polaris-XP-1000-EVP-ARP-Head-Stud-Clutch-Kit_95b09ecd-8917-455e-ab9e-3e775ad4b333.jpg?v=1759179290","url":"https:\/\/oneshotpowersports.com\/products\/polaris-rzr-xp-turbo-s-xr-series-11mm-direct-replacement-custom-age-625-head-stud-kit","provider":"One Shot Powersports","version":"1.0","type":"link"}