C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Exaust manifold

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Old Jan 26, 2003 | 07:13 PM
  #1  
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Default Exaust manifold

I'm putting the exaust manifolds on. It looks like I might be a few bolts short.
Now I'm wondering if I'm putting the bolts in the right place.
I think that there are two long ones with studs on them that go on the two inside holes? This is at least on the pass. side. Is it the same on the other side?
There is also one long one with the head on the end of it on the pass. side.
Does that one go on the 1st hole on the front? I think may be for the A/C?
If someone has a diagram or discription that would help!
Thanks!
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Old Jan 26, 2003 | 08:15 PM
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Default Re: Exaust manifold (BIG K)

For pass. side use two studs. one for the A/C and the other for the oil dip stick housing. The driver side stud is the second one near the front of the engine. Hope this help.
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Old Jan 26, 2003 | 08:38 PM
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Default Re: Exaust manifold (VQT88Vette)

Thanks. So the two studs on the pass. side goes in the middle? Yes?
BTW Found the missing bolts. Forgot we used four of them to pull the engine and put them in a different place :eek:
They say the first thing to go is the mind :D
So, did you see a longer bolt that goes on the pass side front hole?
Or is a "normal" size?
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Old Jan 26, 2003 | 09:22 PM
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Default Re: Exaust manifold (BIG K)

The dip stick tube connects to the header/Y-pipe flange with a hose clamp. Remove the access plate on the inner fender well to install this one.

A tube from the A/C goes back to a stud and I believe the AIR diverter fastens to a stud in the front-most position.

To verify the above, lay the accessories in position to see where they must fasten.
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Old Jan 26, 2003 | 10:31 PM
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Default Re: Exaust manifold (65Z01)

Thanks. I think that I've done all that I'm going to do tonight.
I'll check it in the AM.
Thanks again :thumbs:
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Old Jan 27, 2003 | 09:07 AM
  #6  
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Default Re: Exaust manifold (BIG K)

I don't remember a long bolt use on the front hole. I thought all have the same length.

Note: A side from exhaust mainfold bolts. I forgot to put back a bracket rod that goes from the driver side engine mount to the air/alternator bracket. This rod is much shorter than the A/C bracket rod that attached to the ex. mainfold stud. You'll find out when everything is back in the car except that little rod and bolt still laying around :lol:
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Old Jan 27, 2003 | 12:02 PM
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Default Re: Exaust manifold (VQT88Vette)

Doggone! :banghead: Well I guess I need to find out where that long bolt goes. It's about 2x's longer. It looks smaller in diameter than the exaust manifold bolt but, it also seems to have the same thread size :crazy:
Indeed, I would rather not wait to backtrack it. Doing it right the first time is my intent :thumbs:
Thanks
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Old Jan 27, 2003 | 12:25 PM
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Default Re: Exaust manifold (BIG K)

Get me a round trip ticket from Philadelphia to LAX this weekend for the Chinese new year and I'll help you put the engine back together:)
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Old Jan 27, 2003 | 12:46 PM
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Default Re: Exaust manifold (BIG K)

Here is a pic of an '89 for your reference.... :thumbs:


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Old Jan 27, 2003 | 01:31 PM
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Default Re: Exaust manifold (VetBoy89)

Thanks so much for the pic's. Thanks for "drawing" me a pic.
Now to figure out how to the torque the inboard bolts(19 ft. lbs.).
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