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LS1/LS2/LS6 intake swap Sticky!!!

Old 04-30-2011, 12:32 AM
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Originally Posted by nmp0098
There's a little power there, and my MAF was only $25 + a couple connectors from the dealer.
from a GM dealership? you would happen to have a part number would you? or what would the MAf originally go on?
Old 05-23-2011, 02:12 PM
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Great write up. What kind of gains can you see from this swap? Thanks
Old 05-23-2011, 03:06 PM
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Originally Posted by 06silverss
Great write up. What kind of gains can you see from this swap? Thanks
LS1 15whp/20 lb-ft
LS6 20whp/25 lb-ft

You can expect these numbers across the power band. LS6 will pull a little harder past 5000 rpm.
Old 05-23-2011, 05:46 PM
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David so the ls1 and ls6 you will need the same mods for them to work?
Old 05-23-2011, 06:08 PM
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Originally Posted by Hawkins04
David so the ls1 and ls6 you will need the same mods for them to work?
Yes
Contact https://ls1tech.com/forums/member.php?u=165884
He's got most of the swap stuff forsale
Old 05-23-2011, 06:17 PM
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thanks I can't buy the stuff now but I'm kinda really thinking of keeping the GXP and putting a cam in it or a turbo. There is a few things I need to check out yet on putting a cam in
Old 05-24-2011, 01:50 AM
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Cool Thanks, I might be getting in contact with him.
Old 05-25-2011, 12:41 PM
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I feel like driving my car to one of you guys to do this for me....
Old 07-03-2011, 12:28 PM
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Does it matter what year intake manifold you get?
Old 07-04-2011, 11:53 AM
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No. Just different part numbers.

01-02 LS1 F body
04 LS1 GTO
04-05 lS6 CTS-V
2002-2004 LS6 ZO6 Corvette
Old 08-03-2011, 07:55 AM
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is there anyway someone could measure out the dimensions of the TB adapter for me? i need the LS1/6 intake side and LS4 TB side. Just have a idea i want to play with.
Old 08-06-2011, 07:27 PM
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Does it matter which rails and injectors we get? LS1 or LS6? Are they the same? I've got a LS6 intake waiting for me when I get home.

I'm a newb at all of this and am just trying to get all the pieces together to take to my car guy!
Old 08-06-2011, 10:16 PM
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Originally Posted by ImpSS07
Does it matter which rails and injectors we get? LS1 or LS6? Are they the same? I've got a LS6 intake waiting for me when I get home.

I'm a newb at all of this and am just trying to get all the pieces together to take to my car guy!
Use 28lb or higher EV6 injectors with a LS1/LS6 rail.
Old 08-06-2011, 10:17 PM
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Originally Posted by Dom87SS
is there anyway someone could measure out the dimensions of the TB adapter for me? i need the LS1/6 intake side and LS4 TB side. Just have a idea i want to play with.
PM Brian396
Old 08-12-2011, 05:12 PM
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I have a idea to possibly make the install easier. But need to know about how much clearance there is between the highest point on the fuel rail and the bottom of the hood. It may or may not work, but I won't know till I get some more info.
Old 08-12-2011, 05:14 PM
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Originally Posted by DavidGXP
PM Brian396
I somehow missed this post, but Brian was kind enough to PM me.
Old 08-13-2011, 06:05 PM
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Originally Posted by Dom87SS
I have a idea to possibly make the install easier. But need to know about how much clearance there is between the highest point on the fuel rail and the bottom of the hood. It may or may not work, but I won't know till I get some more info.
Plenty of clearance!
Old 08-13-2011, 06:20 PM
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I am out of room on the first page, so.. I will have to start posting here.
Thought I would share my PCV solution. This mod works great and goes across the intake manifold in between the intake and rear valve cover.
Basically, I took a 5/8-3/4 hose adapter, and a 3/8 to 1/2" hose adapter, and made the
3/8" fit the 5/8" and glued the two pieces together. I cut the adapters with a hacksaw and sanded the mating pieces flat. After sanding, I attached the fittings with super glue and a layer of gasket maker once bonded. The pics should explain it's self and give a better idea.
I bought the fittings from NAPA.

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Used a 2" piece of 5/8" hose to attach.

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Last edited by DavidGXP; 08-13-2011 at 06:40 PM.
Old 08-13-2011, 06:25 PM
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Originally Posted by DavidGXP
Plenty of clearance!
Good deal, I started working on the design this morning.
Old 08-13-2011, 06:28 PM
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And another completed, ready to bolt-on, ported, LS6 intake. This is my 5th intake swap LOL!

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