My 2006 Superduty 6.0 powerstroke was blowing out coolant when I was towing in the mountains last year. I finally broke down and took it in a couple of weeks ago to get upgraded. They're doing a valve job, new ARP head studs, upgraded oil cooler, EGR Cooler delete, new fuel rail O-rings, checking the injectors, , adding a tuner, upgrading the oil lines to and from the turbo and a few more things I can't remember. The heads took longer than expected, so I won't get a chance to drive it until late next week at the earliest. The whole thing is going to cost 6800 plus tax, barring any issues with the injectors and heads.