Hi I have a 2003 Chevy Silverado single cab with a 4.8. I want to drop a 6.0 in it. Do I have to get the computer for the 6.0 or will mine work with a custom tune. Also I have heard that if I port and polished my 4.8 heads and put them on the 6.0 it will give me some crazy power. Just what I have heard. If thats true does anybody know what some horsepower specs would be if I did that. Would I need a new tranny and what would be the best rear end gears for that set up? Thanks for any advice.

 

Do a search for "6.0 swap" and read some of the threads, they'll answer all your ?s

 

https://www.performancetrucks.net/fo...&highlight=lq4

 

What about using 4.8 heads instead of the 6.0 heads? Couldn't find anything on that.

 

use the 6.0 317 heads