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Headers for a 402ci LS2 with LS7 style Heads?

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Old Jun 16, 2006 | 01:23 AM
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Default Headers for a 402ci LS2 with LS7 style Heads?

Hey guys. I am trying to decide what headers to get for my 402. The 402 has ETP's LS7 heads for the 4.00" bore. I am getting mixed opinions from everyone and I am on the fence, so I need someone to push me off. lol.

I think I narrowed it down to one of these guys ...

- LG Pro Series headers ... $1500 ish.
- Kooks 1 7/8" Headers ... $1300 ish.
- LG Street Series Headers... $1000 ish.

The plan was to go with the headers w/ no cats, into dual QTP electric cutouts, then into the stock cat-back. This way I could open the cutouts for racing, and close them for normal driving. I was tossing around the idea of getting the high-flow cats ($300), but I feel they may be a pretty large restriction ... any opinions on this setup??
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Old Jun 16, 2006 | 06:11 AM
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https://ls1tech.com/forums/corvette-performance/522217-lg-tsp-kooks-sw-c5-headers.html

LG pro long tubes here, no cats.
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Old Jun 16, 2006 | 10:59 AM
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Originally Posted by V-seriesTech
I saw that thread ... but most of the people in there are talking about stock cubed LS1's .... not a 402. I keep hearing mixed reviews with the 402, some people say to go with 1 7/8, some say stay with 1 3/4. I'm leaning heavily towards the LG pro's, but then there are the LG street series, which are almost $500 cheaper ....
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Old Jun 16, 2006 | 11:02 AM
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Originally Posted by x phantom x
I saw that thread ... but most of the people in there are talking about stock cubed LS1's .... not a 402. I keep hearing mixed reviews with the 402, some people say to go with 1 7/8, some say stay with 1 3/4. I'm leaning heavily towards the LG pro's, but then there are the LG street series, which are almost $500 cheaper ....

I'd say KOOKS or LG pro's.

Nothing else
bro
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Old Jun 16, 2006 | 12:21 PM
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Originally Posted by x phantom x
I saw that thread ... but most of the people in there are talking about stock cubed LS1's .... not a 402. I keep hearing mixed reviews with the 402, some people say to go with 1 7/8, some say stay with 1 3/4. I'm leaning heavily towards the LG pro's, but then there are the LG street series, which are almost $500 cheaper ....
Well sure, but then you are saying the LG Streets which have a 2.5" midpipe...too small IMO.

Go with Vette Doctor's 1 7/8, Kook's 1 7/8 or the LG Pro's.

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Old Jun 16, 2006 | 07:37 PM
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Originally Posted by Termin8r27
Well sure, but then you are saying the LG Streets which have a 2.5" midpipe...too small IMO.

Go with Vette Doctor's 1 7/8, Kook's 1 7/8 or the LG Pro's.

Okay, so cancel out the LG street series, as I had thought. Between the Kooks and LG Pro's .... is bigger better or what?
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Old Jun 16, 2006 | 08:40 PM
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Stainless Works makes some very good headers. I know Lingenfelter uses them and so do a couple of other shops. They come in 1 3/4 and 1 7/8. I think that they also carry a 3" exhaust for C5's.
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Old Jun 16, 2006 | 10:27 PM
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I run Cartek 1 7/8 & full 3" Stainless works on my 97'
Work great and quiet



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Old Jun 16, 2006 | 10:52 PM
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vette doctors american racing headers!! they are on sale right now too!
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Old Jun 17, 2006 | 01:34 AM
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Originally Posted by nc z28
vette doctors american racing headers!! they are on sale right now too!
How much $$ ??

Also, are these anywhere near as good as the LG pro's?
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Old Jun 21, 2006 | 11:48 AM
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ttt
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Old Jun 21, 2006 | 11:58 AM
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http://www.thevettedoctors.com/
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Old Jun 21, 2006 | 12:11 PM
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Originally Posted by V-seriesTech
Are they LS1tech forum vendors???
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Old Jun 21, 2006 | 12:29 PM
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Originally Posted by SideStep
Are they LS1tech forum vendors???

Oh I dunno man, check it out.
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Old Jun 22, 2006 | 09:37 PM
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Vette doctor American racing brand headers are what I chose and would highly recommend them.

Great price too!
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Old Jun 22, 2006 | 10:35 PM
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LG PRO's, I belive they have the longest primay length and the merge collector to improve torque. Second choice would be Vette Doctors.
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Old Jun 22, 2006 | 10:49 PM
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Originally Posted by JBsZ06
Vette doctor American racing brand headers are what I chose and would highly recommend them.

Great price too!
Can you PM me with the price of the Vette Dr's headers?

Thanks.
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