Right now=5.3
Later=turobcharged 6.0
What would be the most cost effective way to build up a 6.0 to handle 12-15 psi easy. Pistons, cam, heads, bore it out(?), etc. How much $$$ would it require?

What would be the best size stall?

Should I just get a 4L80e tranny or have that built up? I have 3:73 gears at the moment, should I consider changing that also?

 

A bone stock 6.0 can handle 12-15PSI fine. No need to upgrade anything.
Most people go with a 3,000 stall. A Built up 4l60e should be fine as long as you don't beat on it super hard, but might eventually let go depending on how you drive.
Philip S.

 

IMO if you are gonna build it build it up right the first time. True a stock 6.0L CAN handle your average 12psi but you don't have much of a cushion to thwart detonation..

I'd do pistons and rod bolts at the minimum and stud the heads. That would suffice I feel.

I was gonna do a budget 370ci motor but after machine work and rods, pistons, bolts, etc etc it came out more than I would have thought but I am also not trying to run 500rwhp

I'd straight up do the 4L80E. It's cheaper than trying to toss the dice and get lucky with a "built" 4L60E. Big HP trucks + 4L60E = then when you think of how much money you wasted, then when you realize you should have did the 4L80E in the first place, then you develop a hatred for the 4L60E

Hmmm, does it sound like I hate that tranny or what? Hahahaha

 

Thanks for the imput. I figured them 4l60e tranny's would be to weak, since GM has this thing called Torque Management=2 cheap to put in bigger tranny. ALmost pisses me off, but I'm a Chevy guy.

Anybody have a a good piston kit recommendation?

 

So the assumption is that a stock 6.0 will handle roughly 12psi??????

I'm curious as I will be boosting my 6.0 in my '02 Denali soon. I was planning on 6psi...

 

I would look for a 6.0/4l80e combo. Try and find something used with low miles. There is no point in not doing both now for cheaper, since you are going turbo, you are going to need the bigger tranny anyways.

 

6.0 will handle in the upper 16 PSI range without a hiccup. Parish8 ran a bone stock 4.8 litre with 22PSI! It didn't blow. Gen III motors are extrememly strong in stock form.
Philip S.

 

I dont think that Jim pushed his 4.8 to 22lbs. I think it was more like 16lbs for like 3 months. But if you are going to boost these engine for awhile and are going to be pushin that kind of boost you are goin to need to build that engine. Trust me.

 

As long as you keep it from detonating, it should be fine, but if it was me, I would buy some good pistons, rods, and rings and not think twice about it.