XR Series 11mm Custom Age 625 Head Stud Kit for Polaris RZR XP Turbo/S, Pro XP, & Turbo R

Price
$316
In stock! Usually ships within 24 hours.

Description

Prevent 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.

Why the EVP XR Series CA-625 studs are superior to other studs on the market:

  • The 11mm (stock) OD is the ideal size to maximize clamping force without sacrificing block integrity
  • Made 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.
  • Machined ball end allows the stud to bottom out in the case without losing any thread engagement.
  • Includes head studs, nuts, and washers for the ultimate direct replacement head stud kit

XR Series

Evolution Powersports is proud to introduce the all-new XR Series! All the products in this Xtreme Racing 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 & 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.

    Instructions

    XP Turbo_S EVP Head Stud Kit

    Shipping Information

    Our on-line store is open 24/7 and we ship Monday through Friday, excluding some holidays. Orders received for products without shipping restrictions on its product page will ship the same business day when received before 12:00 p.m. MST. Orders in high demand will ship under the same guidelines unless there is a backorder. backordered items will be relayed to customer via email within 48hours of purchase date.

    About Us

    Geiser Performance has been designing and manufacturing the highest quality parts since its inception in 2017. Not only do we manufacture all of our parts in-house here in the USA, we also design and manufacture many parts for several other companies in our industry as well as other industries.

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    Reviews

    TOMMY G.

    Verified Purchase

    I really like the design with the LinQ ready sides. I purchased the additional LinQ latches and this thing is rock solid. I also purchased the PRP bag to go on top. This is by far the best way to carry tools, parts, etc. while on my multi day rides or just going out for the day. With my OEM tire rack, I can see out the rear view mirror! Oh, and customer service is excellent.

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    Alex A.

    Verified Purchase

    Looks very good!

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    CHRIS G.

    Verified Purchase

    Beautiful craftsmanship as always.

    Chad W.

    Verified Purchase

    Geiser products are second to none. Excellent craftsmanship.

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