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ARP main studs are manufactured from 8740 chrome moly steel, heat-treated to 200,000 psi tensile strength, and precision J-form threads rollad after heat-treat to create a fastener that has threads 2000% stronger than others. Reduce crankshaft flex and main cap fretting with these premium quality main studs. Don’t settle for anything less than the best! Main Studs Key Features:Premium grade 8740 chrome moly steel200,000 psi tensile strengthJ-form rolled threadsCome with parallel washers and nuts All kits come complete with hardened parallel-ground washers and aerospace quality nuts.
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