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10-29-2011, 10:28 PM | #1 |
Parts and more parts
Join Date: Nov 2003
Location: Lebo, Kansas (middle of nowhere
Posts: 6,821
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Headers on the 2011 GMC
I just put a set of Kooks Long tube headers with their catted 'Y' tube on the GMC SWB. There is a serious difference in performance and sound. I think that this was definitely a good install. The factory system is so inefficient in comparison.
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Frank |
11-11-2011, 09:58 PM | #2 |
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Join Date: Jun 2009
Location: Murchison, Tx
Posts: 992
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Re: Headers on the 2011 GMC
How much gains we talkin? Any problems with gasket leaks? This might be a mod ill do in the future if its worth it.
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70 chevy LWB 350/TH350 Barn find (AKA the 70) http://www.67-72chevytrucks.com/vboa...d.php?t=406364 East Tx Squares |
11-12-2011, 09:19 AM | #3 | |
Parts and more parts
Join Date: Nov 2003
Location: Lebo, Kansas (middle of nowhere
Posts: 6,821
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Re: Headers on the 2011 GMC
Quote:
There are no gasket leaks and I don't there will be in the future either. The headers came with a set of aluminum gaskets for the engine ports and the lower connections are all a "ball and socket" design. All of the bolts have locknuts to maintain the tightness in them.
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Frank |
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11-12-2011, 10:33 PM | #4 |
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Join Date: Jun 2009
Location: Murchison, Tx
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Re: Headers on the 2011 GMC
That's good to know. Ill have to do this mod to mine later down the road. Thanks for sharing!
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70 chevy LWB 350/TH350 Barn find (AKA the 70) http://www.67-72chevytrucks.com/vboa...d.php?t=406364 East Tx Squares |
11-19-2011, 02:14 PM | #5 |
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Join Date: Aug 2010
Location: Nederland, TX
Posts: 429
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Re: Headers on the 2011 GMC
I just ordered a set for my 6.2 Silverado Friday, hearing good things makes me all the more anxious to put them on
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11-20-2011, 10:17 AM | #6 |
Parts and more parts
Join Date: Nov 2003
Location: Lebo, Kansas (middle of nowhere
Posts: 6,821
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Re: Headers on the 2011 GMC
Are you going to install them yourself? I have a two post oift and it made a world of difference in getting mine done. There are a few tough access bolts that you will have to deal with. I have pretty good selection of tools, but found that I needed to expand my collection some. Most nuts are metri (of course) and using a socket set to gdet at them was not always available. I now have a bigger selection of metric combination wrenches. The new design ratchet box end wrenches is now in my tool box. There were a couple bolts on the exhaust manifolds to the 'Y' pipe were hard to get access to and the rear head bolts for each of the exhaust manifolds.
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Frank |
11-20-2011, 03:41 PM | #7 |
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Join Date: Aug 2010
Location: Nederland, TX
Posts: 429
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Re: Headers on the 2011 GMC
Yeah i'm going to be putting them on myself, my truck is lifted 8" so I have a lot of room underneath to work, may have to add some tools to my collection, which i'm considering a plus, thanks for the heads up and info
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