When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I bought a set of Headers for my 53 303, they are made by a company called http://noxiouscustoms.com/ when I fit them I'll need to replace the old Exhaust Manifold to Cylinder Heads studs, Fusicks have a set of new studs but don't keep new nuts for them, so I was wondering if anyone does a set of bolts instead for this application? I had a look at ARP but cant seem to find anything, or is it just best to keep with the studs?
Yes , ARP's would be overkill . Besides , getting the studs out may be a problem .
Thanks Charlie, had those old studs out before, so that's ok, i'll just get a new set from Fusicks, any ideas on where I might get new nuts for the studs?
Thanks Charlie, had those old studs out before, so that's ok, i'll just get a new set from Fusicks, any ideas on where I might get new nuts for the studs?
After looking at this situation , maybe short bolts would be better .
If you can find a source of U.S. standard bolts , then 3/8 -16 X 3/4 inch , grade 8 , bolts would be the thing to get . With 3/8 lockwashers .
Last edited by Charlie Jones; July 11th, 2018 at 05:34 PM.
3/4" + the header flange thickness ?
A place to try over there might be a Harley-Davidson dealer.
I would think they would have them on hand what you need and you wouldn't have to wait for them to arrive.
.....just my two cents worth
After looking at this situation , maybe short bolts would be better .
If you can find a source of U.S. standard bolts , then 3/8 -16 X 3/4 inch , grade 8 , bolts would be the thing to get . With 3/8 lockwashers .
I've ordered new studs from Fusicks anyway, just in case! in the meantime i'll try and source a set of bolts.
Cheers Charlie.
Originally Posted by OLDSter Ralph
3/4" + the header flange thickness ?
A place to try over there might be a Harley-Davidson dealer.
I would think they would have them on hand what you need and you wouldn't have to wait for them to arrive.
.....just my two cents worth
Flange is 3/8 thick, so 1 1/4" total to include a lock washer? there are a few good American car parts stores over here, so hopefully they'll have em, waiting for stuff to arrive is a real pain.
Thanks Ralph.
I've highlighted the ones I think I need..??
Last edited by Eightbanger; July 13th, 2018 at 07:17 PM.
I've ordered new studs from Fusicks anyway, just in case! in the meantime i'll try and source a set of bolts.
Cheers Charlie.
Flange is 3/8 thick, so 1 1/4" total to include a lock washer? there are a few good American car parts stores over here, so hopefully they'll have em, waiting for stuff to arrive is a real pain.
Thanks Ralph.
I've highlighted the ones I think I need..?? 3.90 pounds for each bolt ? YIKES !!!! ARP is good, but you can get by with Grade 5 or 8 carbon steel automotive bolts. 1" would probably work fine. Screw the bolt in to bottom out and check. Grade 5 has 3 lines radially around the top of the bolt head, the Grade 8 has 6 lines.
The OP is i another country (U.K.) and waiting for studs already. The larger hex head bolts will work better to bolt up exhaust headers than the small shouldered 12 pointers that are "half a world away".
I know Ralph, they're silly money.😯
I found these.....any good?
https://www.westfieldfasteners.co.uk/UNC-Bolts-Screws/Hex-Bolt-Full-Thread-UNC-3-8x1-inch-A2-Stainless.html
Last edited by Eightbanger; July 14th, 2018 at 04:56 PM.
July 11th, 2018, 02:55 PM
