The ARP head stud kit for Chevy Big Block MKIV with Merlin heads supplies undercut 12‑point head studs and long exhaust studs specified for that configuration. Intended as a direct‑fit hardware solution for MKIV big block engines using Merlin heads, the kit provides the particular stud design noted in the product description for engine assembly or repair.
ARP Chevy Big Block MKIV w/ Merlin Heads 8 long Exhaust Stud Undercut 12pt Head Stud Kit