Drivers side on3 turbo manifold - Ford Mustang Forums : Corral.net Mustang Forum
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post #1 of 25 Old 04-24-2017, 12:20 AM Thread Starter
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Drivers side on3 turbo manifold

I am having hell installing the drivers side turbo manifold for my on 3 302 kit

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post #2 of 25 Old 04-24-2017, 08:25 AM
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what's the issue? I know with both sides on mine, I can't run any bolts all the way in before the others are close. Have to turn each bolt a few threads at a time or else the tubes interfere with a tool. not super fun when using red rtv as a gasket and trying not to smear it everywhere

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post #3 of 25 Old 04-24-2017, 05:12 PM Thread Starter
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what's the issue? I know with both sides on mine, I can't run any bolts all the way in before the others are close. Have to turn each bolt a few threads at a time or else the tubes interfere with a tool. not super fun when using red rtv as a gasket and trying not to smear it everywhere
I've tried that. And you ain't kidding about the sealant. I am probably going to stud the exhaust manifold
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post #4 of 25 Old 04-24-2017, 11:12 PM Thread Starter
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Got me a set of APR studs for exhaust manifolds. I like the security and I feel like the sealeant will be applied better. I'll let everyone know how these studs work
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post #5 of 25 Old 04-25-2017, 08:15 AM
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Got me a set of APR studs for exhaust manifolds. I like the security and I feel like the sealeant will be applied better. I'll let everyone know how these studs work
Probably a good idea if you can get the nuts on with the studs sticking out close to the tubes.
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post #6 of 25 Old 04-25-2017, 09:37 AM
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Go with Stage 8 and never look back.

1993 Teal Cobra #2531 1 of 452, 347, Precision 7675, The entire kitchen sink....maybe 2 kitchen sinks at this point!
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post #7 of 25 Old 04-25-2017, 11:39 AM
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Stage 8 locking bolts won't clear the header tubes, or at least not in my experience. The header bolts are a pain, but I'd rather hang 10 sets of on3 headers than install one pair of BBK longtubes.

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post #8 of 25 Old 04-25-2017, 11:46 AM
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Stage 8 locking bolts won't clear the header tubes, or at least not in my experience. The header bolts are a pain, but I'd rather hang 10 sets of on3 headers than install one pair of BBK longtubes.
The OP is asking about On3.
I use Stage 8 bolts on my On3 headers along with high temp silicon sealer.
I'm not sure how we got onto the subject of BBK Long Tube headers under the Turbo subject line?

1993 Teal Cobra #2531 1 of 452, 347, Precision 7675, The entire kitchen sink....maybe 2 kitchen sinks at this point!
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post #9 of 25 Old 04-25-2017, 11:52 AM
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Here is a picture of my On3 headers with Stage 8 bolts.
You will have to zoom in, but they are there.



1993 Teal Cobra #2531 1 of 452, 347, Precision 7675, The entire kitchen sink....maybe 2 kitchen sinks at this point!
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post #10 of 25 Old 04-25-2017, 12:38 PM
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Originally Posted by Meegs View Post
The OP is asking about On3.
I use Stage 8 bolts on my On3 headers along with high temp silicon sealer.
I'm not sure how we got onto the subject of BBK Long Tube headers under the Turbo subject line?
He was just saying that the header bolts are a pain with the on3 headers but at least theyre easier than BBK.

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post #11 of 25 Old 04-25-2017, 01:06 PM
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He was just saying that the header bolts are a pain with the on3 headers but at least theyre easier than BBK.
Spot on.

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post #12 of 25 Old 04-25-2017, 02:24 PM
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Originally Posted by boostup89 View Post
Stage 8 locking bolts won't clear the header tubes, or at least not in my experience.
Oh, my apologies for misunderstanding then.
I thought you said Stage 8 locking bolts won't clear.

1993 Teal Cobra #2531 1 of 452, 347, Precision 7675, The entire kitchen sink....maybe 2 kitchen sinks at this point!
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post #13 of 25 Old 04-25-2017, 02:43 PM
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Looks like they fit fine on yours, maybe I'll try them again.

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post #14 of 25 Old 04-25-2017, 07:50 PM Thread Starter
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Looks like they fit fine on yours, maybe I'll try them again.
This is a 302 based platform. I think the studs will work. If they do awesome. I feel like they will seal better
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post #15 of 25 Old 04-26-2017, 06:44 PM
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On mine, 12pt studs worked on the driver side and made the install easy. Now the passenger side I've drilled the holes bigger and use studs and bolts together. Also put Red rtv on the the threads so they don't loosen.

93 Stock short block,on3 70mm turbo,Performer heads, Almighty B cam, Typhoon intake. Dynamic comp1 c4, PTC 10"
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post #16 of 25 Old 04-26-2017, 08:36 PM Thread Starter
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On mine, 12pt studs worked on the driver side and made the install easy. Now the passenger side I've drilled the holes bigger and use studs and bolts together. Also put Red rtv on the the threads so they don't loosen.
Bingo just got them and my wideband in
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post #17 of 25 Old 04-30-2017, 11:23 AM
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Here is a picture of my On3 headers with Stage 8 bolts.
You will have to zoom in, but they are there.


Meegs, What wrap is that? Looks good!
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post #18 of 25 Old 04-30-2017, 07:22 PM
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Meegs, What wrap is that? Looks good!
Heat shield products. Only thing I've found that actually works.

https://www.heatshieldproducts.com/a...atshield-armor
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1993 Teal Cobra #2531 1 of 452, 347, Precision 7675, The entire kitchen sink....maybe 2 kitchen sinks at this point!
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post #19 of 25 Old 05-02-2017, 12:41 AM Thread Starter
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I am having a hard time aligning these manifold up. Even with studs they are extremely difficult to get align up. I know there is a wide variety of cylinder heads these fit and the quality control isn't going to be perfect between the head manufacturers and header/manifold manufacturers regardless. I am considering wideing the manifold bolt holes
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post #20 of 25 Old 05-02-2017, 12:57 PM
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doesn't hurt to give em a little internal clearancing
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post #21 of 25 Old 05-02-2017, 11:52 PM Thread Starter
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doesn't hurt to give em a little internal clearancing
I lined em up in the studs. Too a hammer and pry bar and tapped em down. Hitting each side a little bit at a time. When I got em half way down I smeared some copper rtf on them. Sure hope it seals. I've installed many of headers. This #### takes the cake. This is harder that installed long tubes on a 4v motor in car. Not kidding. This has become a monster nightmare that is consuming my days, nights. I wish I would kept that ####ty ass s trim on my car
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post #22 of 25 Old 05-03-2017, 08:35 AM
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I lined em up in the studs. Too a hammer and pry bar and tapped em down. Hitting each side a little bit at a time. When I got em half way down I smeared some copper rtf on them. Sure hope it seals. I've installed many of headers. This #### takes the cake. This is harder that installed long tubes on a 4v motor in car. Not kidding. This has become a monster nightmare that is consuming my days, nights. I wish I would kept that ####ty ass s trim on my car
Lol did you buy the kit new? email owner and see if he'd send you a revised header? As long as the holes line up they really aren't hard to install at all. about as easy as a shorty.
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post #23 of 25 Old 05-12-2017, 10:19 PM Thread Starter
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I got it used. no I've installed long tubes on a 4v faster than I did one on3 drivers manifold.
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post #24 of 25 Old 05-13-2017, 11:53 AM
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I had both of mine on in an hour and a half. That was tightening them down a little at a time with remflex gaskets and grinding the lip on the passenger side frame rail. Fit right on. I have stock heads though.
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post #25 of 25 Old 05-16-2017, 07:35 PM
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Some things never change i see.

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