Pasadena Diesels shop rate is $90 an hour, I just called them to do some work on my truck. I live about 50 miles from them, but after talking with Bob over the phone, I feel that it's worth the drive.
I've been looking all over the place for a good shop in Northern, VA that specializes in Diesel work, but haven't found one I felt comfortable with. After A few minutes on the phone with Bob, I could tell the guy new his stuff and took pride in his work.
*Note, I've got a 7.3 and am not getting the head studs worked on. It's probably in your best interest to give them a call and get a quote.
Here is a link to them
Home - Pasadena Diesel Repair
I'll report back with a review of my experiences.