engine swaps

nate3531 · May 21, 2014

Okay, after a bit of light towing the last few weeks, I say screw gas mileage I want more torque. This 4.8 is just to small, and has no balls down low. My old 5.7 tbi would pull circles around this thing.

With that being said, what all do I need to drop a 6.0 in my truck? PCM, engine, and that it? being both came in this year model truck I should be able to put all my accessories on it including DBW throttle body. Am I correct or is there more to it? I just got my 4L60 rebuilt and it should be good for a while but I may try to get a 4L80 while I am in there swapping shit.

962000chevy · May 21, 2014

From what I've read the engine is really all you need a good tuner(blackbear performance) can do the tune for you. When I swapped from a 5.0 to a 5.7 they just rewrote my stock pcm for the larger engine. Also I would look into a 6.0/4l80e package. I have had excellent luck with 4l60e's but a well tuned 6.0 would probably hurt a stock one on the first pull with a load behind it.

nate3531 · May 21, 2014

962000chevy said:
From what I've read the engine is really all you need a good tuner(blackbear performance) can do the tune for you. When I swapped from a 5.0 to a 5.7 they just rewrote my stock pcm for the larger engine. Also I would look into a 6.0/4l80e package. I have had excellent luck with 4l60e's but a well tuned 6.0 would probably hurt a stock one on the first pull with a load behind it.

I am thinking of getting a combo if I can, but I have 6 months warranty left on my current rebuild on the 4L60, it has upgraded sun shell, shift improvement kit, and some other upgrades. Probably is close to a 4L65 now. I still want an 80e but I may just not put it in and get it built, then have it on standby.

962000chevy · May 21, 2014

From what I've been told a stock 4l80e can handle damn near the same as a fully built 4l60e but I'd run the 60e till warranty was out any way.

2003tahoe · May 21, 2014

I think in houston on craigslist theres a 6.0l thats for 1k and a couple 4l60e

JonZ71 · May 24, 2014

You can literally swap in any of the ls series engines and it will run nearly perfect. you can take a 5.3 and swap it in and really don't even have to mess with the computer.