I'm thinking about getting a 6.0L fairly soon. What can you guys tell me about them? I know it's basically a bored 5.3 but other then that I don't know and can't find any info. What problems do they have? etc...

 

one problem that i cant figure out is random misfire on 2-4-6-8 cylinders.

 

the older 6.0 suck on gas but are fairly stout on towing. my friends 01 or 02 was terrible. im assuming because it was the first year for that motor.
i would love to have my friends 8.1with the allison. that thing roles and gets better mpg than me.

 

I got a 07 with the 6.0 and love it.It has a lot more stuff then the 5.3 I had in the 03. Wife says it feels likeour Vette. The variable valve timing, that's what I wanted, gives it a lot of low end torque. Average MPG is 14.5 for 5500 miles. The 5.3 got 15.1 for the same kind of driving. It is a lot quicker then the 6.0 in the 3/4 ton. You also get the M70 tranmission instead of the M30. I would buy it again for sure.

 

I had a 2005 2500HD with the 6.0 & bought a 2007 6.0 the variable valve timing does the trick! 11.0MPH with 4:10 gears to 14.5 with 3:73's & it tows more! I love it.