Exhaust Manifold studs
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Laughing Gas
Joined: Oct 2010
Posts: 997
Likes: 2
From: Rock Valley, IA
Exhaust Manifold studs
Hello everyone,
I am looking for exhaust manifold studs for my 85 F350 with a 7.5L. I've looked at all the local places and the usual places online and can't find just the studs. There are quite a few that come with the manifolds but they don't mention the size. If I could get the size of the studs or where I can order them from I would be greatly appreciative. Thanks.
I am looking for exhaust manifold studs for my 85 F350 with a 7.5L. I've looked at all the local places and the usual places online and can't find just the studs. There are quite a few that come with the manifolds but they don't mention the size. If I could get the size of the studs or where I can order them from I would be greatly appreciative. Thanks.
Old School Hot Rodder
Joined: Feb 2006
Posts: 6,472
Likes: 11
From: Exmore, VA
Are you talking about the studs for the exaust pipe or to the head? The threads in the heads are 3/8-16, the manifold is either going to be 7/16-14 or may be a metric. I don't have mine out to check.
Old School Hot Rodder
Joined: Feb 2006
Posts: 6,472
Likes: 11
From: Exmore, VA
Most parts stores carry exhaust stud kits. If they are american thread they will be 7/16-14, Chevys use 3/8-16 studs (they're the ones that almost always break off).
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Laughing Gas
Joined: Oct 2010
Posts: 997
Likes: 2
From: Rock Valley, IA
Unfortunately they're metric. I believe the one's that go into the manifold are 11-14 or 16. The other end doesn't matter too much. 
I'm running back to the parts store tomorrow to see if there are any metric studs that might fit. As a precaution, I'm bringing in a spare manifold just to test the threads. Wish me luck. I'll let you know tomorrow.
I'm running back to the parts store tomorrow to see if there are any metric studs that might fit. As a precaution, I'm bringing in a spare manifold just to test the threads. Wish me luck. I'll let you know tomorrow.
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