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The ARP header stud kit for small-block Chevy includes 3/8 x 1.670in studs with a hex drive style, supplied as the hardware kit intended for SB Chevy header applications. The description lists size and drive format so users replacing or installing exhaust headers can confirm the studs match their small-block Chevy needs, with explicit sizing provided.
ARP SB Chevy 3/8 x 1.670in Hex Header Stud Kit
