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ARP 12-point head stud kit for Buick 401 cid nail-head applications. This kit provides application-specific head studs intended for cylinder head installation or replacement on the listed Buick displacement and nail-head configuration. It’s offered as a direct-fit option to restore proper head clamping during rebuilds and to ensure compatible fastening with the specified engine type.
ARP Buick 401c.i.d. nail head 12pt head stud kit
