newbie here. a few ls1 swap questions

I have a 05 silverado with a 5.3 in it now. I found a good deal on a good running ls1. I know I can bolt my intake, exhaust and oil pan on and it'll fit but I have a few questions. Should I use the truck intake? I want to use long tube headers since I've heard they free up a good bit of power. Can I just order headers for an 05 silverado with a 5.3? Do I have to get my computer reprogrammed? Someone told me I need to change the injectors. Is this true? The ls1 is stock and other than the headers I won't be doing any other work to it.

KERRIGE!!!!!!!!!!! School this guy please!!!!!!

why do you need to swap?

Keep your 5.3 and upgrade your exhaust system and maybe a mild cam, get a NP tune and have some fun! Save the LS1 for another project if you want to dive into something. (just my opinion).

I would keep it as is. Just get a http://www.nelsonperformance.com/ tune, and look at this: http://www.ls1truck.com/forums/front...in-budget.html
But to answer your questions, remove the 5.3, swap all accessories onto the 5.7 and drop the 5.7 back in place of 5.3. Yes, you can use the truck intake to get it back on the road and later do a swap if you want to. I think you can just order the 5.3 truck headers and you should be fine. And yes, the computer will need to be tuned. As far as the injectors go, not sure someone else will have to answer that. Hang on to the LS1 for a different project.

Well I don't have to I just pull a lot with my truck and it really needs more power. A friend of mine is pulling the motor out of his TA and is almost giving it to me so I thought I would put some headers along with good exhaust and a tune to have a better pulling truck.

Does headers pick the 5.3 up as much as they do the ls1? I've personally seen pretty impressive gains from putting them on the ls1 but haven't seen anyone put them on the 5.3. Why not put the ls1 in my truck? The gains not worth it? I will sell the ls1

I was saying, I will sell the ls1 if it's not worth putting it in?

keep your 5.3 and sell the ls1 or put it in another project.
put a turbo on the 5.3 if you need more pulling power

A turbo is a little expensive though. The ls

The ls1 is cheap. Why not put it in? What's the downside of this?

Everyone is telling you to keep the LS1 for another project or sell it to upgrade what you currently have. Swapping the two will create work and take money and in the end will not give you what you want. If it is more pulling power you desire, retune what you got as mentioned before and re-gear the drivetrain. A re-gear will give you the "pulling power" you want and add the retune on top of it and done. It's your choice though, do exactly as you want regardless of what others tell you. Good luck