LS6 Intake on LS1
Thread Starter
Pro
Joined: Jan 2005
Posts: 660
Likes: 3
From: Hagatna Guam
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16
LS6 Intake on LS1
I have a '99 and plan on purchasing a intake manifold from a LS6. Some questions...
1. Has anyone done this mod?
2. Will this be a "bolt on" or will additional parts be required?
3. Will the car have to be retuned after this mod?
4. Are all the LS6 manifolds the same?
Thanks for the help!
Phil
1. Has anyone done this mod?
2. Will this be a "bolt on" or will additional parts be required?
3. Will the car have to be retuned after this mod?
4. Are all the LS6 manifolds the same?
Thanks for the help!
Phil
Safety Car
Joined: Oct 2000
Posts: 4,949
Likes: 10
From: Monticello MN
Originally Posted by Fat Finger
I have a '99 and plan on purchasing a intake manifold from a LS6. Some questions...
1. Has anyone done this mod?
2. Will this be a "bolt on" or will additional parts be required?
3. Will the car have to be retuned after this mod?
4. Are all the LS6 manifolds the same?
Thanks for the help!
Phil
1. Has anyone done this mod?
2. Will this be a "bolt on" or will additional parts be required?
3. Will the car have to be retuned after this mod?
4. Are all the LS6 manifolds the same?
Thanks for the help!
Phil
Ed
Advanced
Joined: Apr 2005
Posts: 99
Likes: 0
Originally Posted by C5XTASY
Many have done this mod and, as a sisde note, all 2001 - 2004 LS1 and LS6 intakes are the same. There are plumbing changes to be made when adding a later intake on a pre-2001 car. I don't believe any tuning changes need to be made.
Ed
Ed
If you plan to keep your cars engine internally stock. Don't rexpect to gain much added HP from an LS6 intake.
Drifting
Joined: Nov 2001
Posts: 1,791
Likes: 0
From: NE PA
Originally Posted by Fat Finger
I have a '99 and plan on purchasing a intake manifold from a LS6. Some questions...
1. Has anyone done this mod?
2. Will this be a "bolt on" or will additional parts be required?
3. Will the car have to be retuned after this mod?
4. Are all the LS6 manifolds the same?
Thanks for the help!
Phil
1. Has anyone done this mod?
2. Will this be a "bolt on" or will additional parts be required?
3. Will the car have to be retuned after this mod?
4. Are all the LS6 manifolds the same?
Thanks for the help!
Phil
2. Well, yes, it's a bolt-on mod, but you will have to get a new coolant line and two plugs. These are usually sold as kits by most that sell the LS6 intake manifold. The reason you need this is that the coolant line runs beneath your LS1 intake manifold, but because the LS6 intake manifold is flat-bottomed, this isn't possible and the line has to be rerouted.
3. Have to be tuned? No. Should it be tuned? Yes, if you want to get the full benefit of the mod which, as already stated, won't be much anyway unless you have future plans for your motor when this change will really start to make a difference.
4. Yes, except for minor changes from the very first ones made, they are all the same.
Here's a good "do-it-yourself" write-up for the intake manifold swap.
http://www.ls1howto.com/index.php?article=5
Melting Slicks
Joined: Mar 2005
Posts: 2,534
Likes: 118
From: Columbia, SC
Originally Posted by C5magic
If you plan to keep your cars engine internally stock. Don't rexpect to gain much added HP from an LS6 intake.
According to the supplied link on the install, there was a gain in HP. Is this incorrect?
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Drifting
Joined: Nov 2001
Posts: 1,791
Likes: 0
From: NE PA
Originally Posted by Minkster
According to the supplied link on the install, there was a gain in HP. Is this incorrect?
Melting Slicks
Joined: Mar 2005
Posts: 2,534
Likes: 118
From: Columbia, SC
Originally Posted by XTrooper
You'll gain horsepower and torque with the swap, just not a hell of a lot of either with a stock cam and heads.
Racer
Joined: Mar 1999
Posts: 413
Likes: 0
From: Pennsville, NJ
