Chevy Gen III LS Series Small Block (2003 & earlier), CA 625+, 4 short, 16 long, Natural 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 3 CA625 HEAD STUD KIT 234-4313
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