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ARP Pro Series Cylinder Head Studs with Hex Nuts
ARP uses a premium grade 8740 alloy, which is rated far superior to aircraft quality, for their Pro Series cylinder head studs. Each stud is placed vertically in special racks and precisely heat-treated to psi to ensure complete heat penetration. Then the studs are centerless ground to make them as close to perfectly concentric as possible, unlike lesser quality studs. Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned -- something that won't happen with inferior quality head studs. By being thread rolled after heat-treat, these studs have about 1000% (that's ten times) better fatigue strength than those studs that are threaded prior to heat-t

Price is $153.00
Price: $152.99