EVP UTV Polaris RZR Pro R Head Stud Kits
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ARP 2000: Strength-tested to 220,000 psi.
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Made in the U.S.A.
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Strength-tested to a minimum of 260,000 psi.
If you want your RZR Pro R to make reliable big power, reinforcing the cylinder heads is a must. Avoid premature head gasket wear or failure with EVP ARP Head Stud Kits that offer significantly improved clamp loads, and proper alignment of the head and gasket for more consistent/accurate torque loading. Whether you opt for the ARP 2000 or Custom-Aged 625+ alloy, both are designed to mimic the OEM design but with more thread engagement for a seamless direct replacement that delivers far superior durability.
ARP 2000 FEATURES:
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ARP 2000: Strength-tested to 220,000 psi.
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Made in the U.S.A.
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Constructed from forged and heat-treated ARP 2000 material
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Additional thread engagement compared to other studies OEM design with significantly improved overall strength and durability
CUSTOM-AGED 625+ FEATURES:
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Strength-tested to a minimum of 260,000 psi.
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Made in the U.S.A.
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Custom-aged 625+ super alloy has superior fatigue cycle life, tensile strength, and toughness (comparison: typical 8470 chromoly stud is roughly 170,000 psi.)
thread-rolled after heat treatment to provide optimum fatigue strength -
Additional thread engagement compared to other studies design with significantly improved overall strength and durability
Fitment:
2022+ Polaris RZR Pro R