Chevy Gen III/IV LS Series Small Block (2004 & later), all same length studs, Black Oxide Finish, 12-Point Nuts
All custom age 625+ studs are centerless ground, heat treated prior to thread rolling and machining and are rated at 270,000 psi. These studs deliver a 60% increase in tensile strength over the oem style head fasteners.
ARP LS GEN 4 CA625 HEAD STUD KIT 234-4314
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