exhaust stud size
Thread Starter
Junior Member
Joined: Dec 2007
Posts: 54
Likes: 0
From: Paris,Ontario,Canada
Car: 1986 Pontiac T/A t-top
Engine: 305 n/a
Transmission: auto
Axle/Gears: not sure
exhaust stud size
hey, wondering if anybody could tell me the size of the exhaust studs(the ones that thread into the exhaust manifolds) for my 86' t/a.. the thread size in particular, I dont have a thread depth gauge..thanks
Supreme Member
iTrader: (1)
Joined: Jul 2004
Posts: 10,763
Likes: 4
From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: exhaust stud size
It's a 3/8"NC thread. Probable around 2" long or so. You mean the ones that thread into the head, and hold the exhaust manifold on to the head don't you?
Thread Starter
Junior Member
Joined: Dec 2007
Posts: 54
Likes: 0
From: Paris,Ontario,Canada
Car: 1986 Pontiac T/A t-top
Engine: 305 n/a
Transmission: auto
Axle/Gears: not sure
Re: exhaust stud size
no...I'm looking for the studs that thread into the manifold....bolts the y-pipe to the manifold, I'm lookin for the pitch of the threads
Supreme Member
iTrader: (1)
Joined: Jul 2004
Posts: 10,763
Likes: 4
From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: exhaust stud size
oh ok. Yep, still 3/8NC as mentioned.
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Posts: 618
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From: Williamstown, NJ
Car: '98 Mustang GT
Engine: '03 4.6L
Transmission: T45
Axle/Gears: DK
Re: exhaust stud size
Which year did they change the thread size? The following link states that it is M10 -1.5 pitch (for an '88).
https://www.thirdgen.org/forums/exha...pipe-stud.html
https://www.thirdgen.org/forums/exha...pipe-stud.html
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Senior Member
iTrader: (7)
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From: Williamstown, NJ
Car: '98 Mustang GT
Engine: '03 4.6L
Transmission: T45
Axle/Gears: DK
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