NewExhaust Header Nuts

CCRainman

Well-Known Member
I found these the other day and order 4 of them. They are 12 point nuts that have a thinner wall for the exhaust. It's a pain to deal with the regular nuts because there is no room to work. These are a lot better and stronger.ARP | Catalog
Go to page 82 under Hex nuts. The part number are 300-8301 if you want them individually or 300-8321 by the pair and 300-8331 10 pack. I baught the Stainless one which is part number 400-8301 and they cost me $5 each but well worth it. I hope this helps out some of you who decide to change or work on your exhaust.
 

MARV

Well-Known Member
i run socket head cap screws for the exhaust and manifold. may not be correct from the engineering standpoint but works for me.
 
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