Yes, new headbolts are a must but be careful. I sent back a set of the headbolts because they were so poorly made - the threads were very rough and did not fully match from one bolt to another. Also, the heads were shallow. Ended up buying a set from the dealer (expensive but good). The parts guy wouldn't tell me where they crap ones came from (or he didn't know).
If you go the ARP stud route, please report back on the part numbers and how it went. Cheers.
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