ARP 155-4203 Head Stud KitARP 155 4203 Head Stud Kit 12 point head stud kit for Ford 429 460 big block applications, designed for improved cylinder head clamping. 12 point nut design for tool clearance Studs help improve clamp load consistency Designed for performance and durability Follow ARP installation and torque procedures Fits: Ford: 429 460 big block applications
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