I'm planning on putting a HO 6.0 LQ9 into my 03 silverado 5.3L. I'm sure that it will work fine with the stock programming, but will I be optimizing the power of the 6.0? My local dealer tells me that they cannot program my truck for the 6.0 swap. Is this true? Who can do this for me? Also is the intake the same on the 5.3 as 6.0? Which should I use? I assume that I use the 6.0.

 

yes the intakes are the same on the trucks. you ned to jsut get a custom tune. go to search button and type in tune. You will find alot of guys and the increase should be quiet a bit.

 

go ahead and put a cam in too
welcome to the site

 

ARP rod bolts are a MUST in my opinion, especially if you're doing a cam and are going to rev it past 6200.

 

can you swap out rod bolts with the motor in the truck?

 

I dont think so. The pan wont come off with the motor in the truck. Gotta yank it and pull the pan to get to the rod bolts. For 70 bucks its a good idea to throw some in.