How dependable?

[eddie18]

Once the egr and head studs are done on the 6.0 how dependable of a engine is it? Is it worth investing in?

[2 stroker]

Don't forget about the oil cooler this is the one that plugs---
Get some gauges do a coolant flush then do the coolers and studs a coolant filter fuel pressure gauge good to go.
2 stroker

[bismic]

How reliable is ANY used car? You get good ones and you get bad ones.

The 6.0L can be a nightmare if it has been abused. It can be a fantastic deal if it has been taken care of - w/ a few of the discussed reliability mods. depending on the model year, a bulletproof EGR cooler would be a wise investment (along w/ the mods already mentioned above).

Also, the 05-07 model years have some weaknesses in the high preessure oil system. Get the STC fitting replaced along w/ the dummy plugs and standpipes.

[colo_dually]

Get the EGR cooler solved and the studs done, and you're a long way to dependable truck. My trucks only been in the shop twice for major issues, one of which was headgaskets because I didn't do my research. Never have I been stranded in this truck, and has started every cold morning when I was up North.

Get the core reliability mods done, and enjoy the truck.

[Chango]

eddie its an investment to say the least. Even if there were 100 people coming on here saying your good to go I would still form your own opinion by spending some time reading through all the posts and different problems here. Theres a few posts floating around about people that havent had any problems at all and then theres people that have had every problem in the book happen.... twice

[TexasKingRanch]

Main thing is have the heads machined, hardened seats put in, ect
Do-not let a shop simply install studs and new gaskets.

[Lilpooh]

Originally Posted by Chango

eddie its an investment to say the least. Even if there were 100 people coming on here saying your good to go I would still form your own opinion by spending some time reading through all the posts and different problems here. Theres a few posts floating around about people that havent had any problems at all and then theres people that have had every problem in the book happen.... twice

I'll have to disagree on your last sentence, the issue is on any truck,car,PC,ATV,ect forum, people come to these forums because they have issues with there stuff and need help to fix them so your gonna see alot of issues with a product.

To OP, read up on the 6.0 as Chango said before you make a decision. If you decide you would like another make (dodge,chevy,ford) do the same with them. As already mentioned, your buying a used vehicle and they ALL have there issues.

Here is some more info for you to read.
Things to consider about owning a 6.0L