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The ARP 4age main stud kit is a must when building your 4age engine! This kit replaces your factory main studs with ultra strong premium grade 8740 chrome moly studs that are heat treated to 190,000 psi! ARP main studs help eliminate main cap walk and fretting while protecting the threads of you engine block. This kit includes studs, nuts, and ground washers. This main stud kit works on the 4age, 4agze, 7age, and 7afe
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🇺🇸 Ship from USA · On Agora since 2026
$124.99