swapping ls2 for ls3 help !!
Thread Starter
Instructor
Joined: Aug 2011
Posts: 125
Likes: 1
swapping ls2 for ls3 help !!
okay guys i have two c6 corvettes 2008 ls3 automatic paddle shifter
2007 ls2 manual 6 spd
i want to sell my 2008 and keep my 2007
now i wanna swap the ls3 into my 2007 and ls2 into my 2008 transmission stays in place i want to keep ls3 with the 6spd
my question is how hard is it
any tips ...
will the wiring harness work ...
any diy out thier to do the swap
Burning Brakes
Joined: Mar 2005
Posts: 1,019
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From: Chico CA
Just a thought but for only about 30 horsepower + effort to swap engines you might be better off just upgrading the ls2. I would expect you would also have a hard time selling a 2008 with an ls2. Good luck if you decide to do it though!
Track Junky
Joined: Jun 2007
Posts: 4,074
Likes: 36
From: Orlando Area
Tech Contributor
Thinking about it, a 2007 LS2 to 2008 LS3 should almost be a drop in except for the MAF...
Last edited by taken19; Jun 8, 2012 at 08:54 AM.
Burning Brakes
Joined: Mar 2005
Posts: 1,019
Likes: 0
From: Chico CA
Even better idea, just keep them both 
. I had to sell my last vette to buy my current car and while I don't regret the decision I both rue and lament it. It was a great car. If you do the swap don't forget to post lots of pics though.
. I had to sell my last vette to buy my current car and while I don't regret the decision I both rue and lament it. It was a great car. If you do the swap don't forget to post lots of pics though.
Burning Brakes
Joined: Mar 2005
Posts: 1,019
Likes: 0
From: Chico CA
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Burning Brakes
Joined: Mar 2005
Posts: 1,019
Likes: 0
From: Chico CA
I've done the h/c thing myself and I wouldn't even think about it unless you are going all the way, it's too much labor to half *** (great learning experience if you've never done it though). I would either get your heads ported/upgraded or just buy a set of finished heads (I used patriot heads on my c5, they probably make something for the ls2 that includes all of the springs, etc, inexpensive too). And don't skimp on the cam, you will wish it were bigger about a week after your done no matter how big it is .
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Burning Brakes
Joined: Mar 2005
Posts: 1,019
Likes: 0
From: Chico CA
Burning Brakes
Joined: Mar 2005
Posts: 1,019
Likes: 0
From: Chico CA
Unless you live in CA, damn CARB. If not that is probably much easier than messing with the heads/cam (though a cam is worth it for the sound)!
Track Junky
Joined: Jun 2007
Posts: 4,074
Likes: 36
From: Orlando Area
Tech Contributor
If you are considering modding your LS2 and are willing to do the work yourself (no, it's not that difficult), you can make some great power. Many have made over 500 rwhp in their M6 LS2's. I had a very street able cam (Spin's 230/234) and ported stock heads and made 485/440. Others have bought used LS3 heads for $600 or so and made similar numbers to ported LS2 heads.