Kooks headers vs steering knukle - LS1TECH



Pontiac GTO 2004-2006 The Modern Goat

Kooks headers vs steering knukle

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Old 12-13-2016, 06:45 PM   #1
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Default Kooks headers vs steering knukle

Decided to change from kooks 1 3/4 to 1 7/8 after doing the LS3 H/C/I. Now I am having a problem with the header barely rubbing the steering knuckle. I went with the Hinson motor mounts which helped a little. Loosen the rack and header on the driver side to see if I could move them some. But the header is still barely touching. Do you guys have any ideas on what to do except taking the header off and putting a dent in it? Don't mind the dent just hate to go thru taking the rack, steering knuckle and header off. Any ideas would be greatly appreciated.


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Old 12-14-2016, 12:14 PM   #2
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I don't remember if the steering shaft is splined or a "D" shaft. If it is splined, you could loosen the two big bolts holding the rack and slide the rack over until it doesn't contact anymore--doesn't need to miss by much. Then you can recenter your steering wheel by moving the shaft a notch on the splined shaft. Be sure and get the two bolts TIGHT after you loosen them.
Or you could take the header bolts out, ream out the holes a little larger and move the header? You could check by reaming the front hole, put the rear bolt in and snug, put the front bolt in and rotate the header a bit and see if it helps before you do all 6 holes.

Last edited by dw456post; 12-14-2016 at 12:25 PM.
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Old 12-14-2016, 04:33 PM   #3
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I've tried that, didn't get much out of it. Thanks for the reply though.
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Old 12-19-2016, 09:51 AM   #4
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I just used a big pry bar and put a bend/dent in the exhaust where the contact point was. You can wedge the pry bar in without dropping the rack or pulling the exhaust.
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Old 12-19-2016, 08:06 PM   #5
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Thanks for the advice. I will try that.
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Old 12-20-2016, 10:07 AM   #6
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Another thing you can try is to put a spacer/washer or 2 under the driver side motor mount to raise that side up a bit more... yeah it's a little shadetree but ya gotta be creative sometimes.
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Old 12-21-2016, 09:41 AM   #7
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I am going to try the pry bar first as soon as I can. Probably after the holiday. Thanks for the advice
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Old 12-24-2016, 01:08 AM   #8
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I'd go with buzz, many have done this as a quick get it going remedy.

If it was my car, I'd throw them Into the stratosphere, I don't think much of kooks or their service. Their 3" GTO cat back is horribly engineered and it was a pain dealing with them and the exhaust.

The day I loose my Turbos, I'd go to ARH.
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Old 12-24-2016, 08:02 AM   #9
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Thanks for the advice 2qwk. I called Kooks about it, couldn't get anyone on the phone so I left a message. They never called back. Trying to figure out the best thing to do.
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Old 12-24-2016, 11:34 PM   #10
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Do you have a picture?
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Old 12-25-2016, 10:25 PM   #11
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I'm out of town will be back later in the week. I will take a picture then.
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Old 01-04-2017, 10:38 AM   #12
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Here is a couple of pics. First one is before new motor mounts. Header was hitting towards top of knuckle and studs on the frame.

Second is after new motors mounts installed and studs on frame cut off. If you look close there is a mark on the headers halfway down the steering knuckle. That's where the header is hitting behind the knuckle.



Kooks headers vs steering knukle-headers-1.jpg

Kooks headers vs steering knukle-header-2.jpg
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Old 01-05-2017, 01:56 PM   #13
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PM sent.
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Old 01-05-2017, 02:50 PM   #14
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Quote:
Originally Posted by KOOKS Headers View Post
PM sent.
PM sent.
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Old 01-14-2017, 02:13 AM   #15
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Quote:
Originally Posted by JimmyGTO View Post
Here is a couple of pics. First one is before new motor mounts. Header was hitting towards top of knuckle and studs on the frame.

Second is after new motors mounts installed and studs on frame cut off. If you look close there is a mark on the headers halfway down the steering knuckle. That's where the header is hitting behind the knuckle.



Attachment 562394

Attachment 562395
I see.. Tranny mount in good shape? You might wrap some radiant heat wrap down there to save the rack from cooking, especially if you drive in traffic.
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Old 01-14-2017, 02:09 PM   #16
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Matt with Kooks wanted some more pics so I sent him some. He emailed me and ask if I would send the driver side header back to him. Shipped it this past Wednesday, they should have received it on Thursday or yesterday. Waiting to hear back from them.

2QWK4U - Motor mounts are in good shape. 24.xxx miles on car.
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Old 01-14-2017, 05:25 PM   #17
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When i did mine I had to grind down the knuckle some for it to clear
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Old 01-14-2017, 06:36 PM   #18
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dent it and be done with it. Engine Masters did a episode where dents do not effect hp
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Old 01-17-2017, 09:36 AM   #19
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Quote:
Originally Posted by VAredgoat View Post
When i did mine I had to grind down the knuckle some for it to clear
Do you happen to have a pic of where you ground it down?
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Old 01-25-2017, 01:02 PM   #20
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Quote:
Originally Posted by JimmyGTO View Post
Matt with Kooks wanted some more pics so I sent him some. He emailed me and ask if I would send the driver side header back to him. Shipped it this past Wednesday, they should have received it on Thursday or yesterday. Waiting to hear back from them.

2QWK4U - Motor mounts are in good shape. 24.xxx miles on car.
Hopefully they correct it. They weren't willing to correct their cat back when we had clearance issues. In that case, it was just a poor routing choice. Corsa and borla had none of these issues and many of the guys went that route. ARH seem to install with less drama and that's what I recommend when asked.

The mounts can move with time sitting. Aftermarket mounts are nice and make the car feel more connected. One sponsor here makes a nice lowered mount for blower cars. I need to look at pics again, don't know if that would be an advantage to you.

Good luck.

Last edited by 2QWK4RU 06 GOAT; 01-25-2017 at 02:22 PM.
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