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ARP 12-point header stud kit for Buick 350–455 applications using 3/8in studs. This kit provides direct-fit studs intended for secure header or manifold attachment during exhaust work, offering an application-focused replacement when reinstalling or upgrading exhaust components on Buick small- and big-block engines. It’s specified for the listed Buick displacements to ensure correct fit.
ARP Buick 350-455 3/8in 12pt header stud kit
