Description
PN: ARP-156-4101
Ford Modular 4.6/5.4L
ARP High Performance series head stud kits are tough! They are heat-treated prior to thread rolling and machining and are rated at a whopping 190,000 psi. These are black oxide studs with hex head nuts and hardened washers. For Ford, 4.6L, 5.4L engines.
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