Swap a ls2 for a ls3
TECH Senior Member
Joined: Jun 2016
Posts: 22,293
Likes: 3,616
From: Central Cal.
Resurrecting this! Toying with the idea of getting a Trailblazer with 5.3 and swapping it for an LS3/L99 or truck 6.2L. Mechanically sounds straightforward, but what must be done electrically? Do all sensors hook up the same? Can I use the same ECU, BUT reprogrammed/retuned?
If this should be in the Conversion section, would a Mod move it please?
If this should be in the Conversion section, would a Mod move it please?
Resurrecting this! Toying with the idea of getting a Trailblazer with 5.3 and swapping it for an LS3/L99 or truck 6.2L. Mechanically sounds straightforward, but what must be done electrically? Do all sensors hook up the same? Can I use the same ECU, BUT reprogrammed/retuned?
If this should be in the Conversion section, would a Mod move it please?
If this should be in the Conversion section, would a Mod move it please?
The model year split was 06 I believe where they changed from 24k reductor to 58k reductor. The LS3 is 58K so it would reduce the number of other changes you need to make, I think mostly sensors and wiring.
TECH Senior Member
Joined: Jun 2016
Posts: 22,293
Likes: 3,616
From: Central Cal.
Just dreaming this up; don't even have a vehicle, but there are some around here, so it got me to thinking. Looks like I better stick to later ones to keep the electrics simpler. It was mainly the differences between the 5.3 vs. LS3/L99 that had to be accounted for. The same could be asked if I were to get a late 5.3 Colorado/Canyon. I thought all these were Gen IV. Looks like some are Gen III
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11 Second Club
Joined: Mar 2012
Posts: 158
Likes: 15
From: fbg, tx
they dont camaros are newer and from what ive heard the ecu is better for tuning but if gen 4 to gen 4 its a plug and play. maybe knock sensor extension, and cam sensor relocation extension if similar to truck 6.0 set up.
