i got a sierra 2007 i take off the 4.8 engine and i get the 6.0 engine what the best performance for this engine mm and only i change the engine with out any thing else well i change any thing like the computer or some thing or the gear ? it's stock only i changed the 4.8 L to 6.0 L engine thank you guys.. and what is the best tuning for the sierra

 

You can get away with the stock 4.8 tuning but it will not be perfect. I would sugest looking into nelson, wait4me,pcmforless, or any other sponsors off to the right of the page. You should also up grade the tranny with a shift kit and servo, when you do this, cause the 60e will take a puke, it just is a mtter of time. Also the stock rear will leave in it to, if you beat on it enough... Other then that everything else is all good..

John

 

mm whats the best performance parts that i can get for my truck ?