Re: 2004 F350 Engine Swap
This I am familiar with.
I would not install a 6.0 without carefully inspecting the engine first. ARP studs are almost mandatory, but cost around $400, and can only be installed with the engine out or with the cab off.
Keep in mind that the cab will have to be pulled to R&R the engine anyway, so this mod should be done as 6.0's have a history of head gasket problems if overheated or "chipped". Pulling the heads will also allow you to inspect the engine carefully prior to instillation.
If the engine is good, this is also a good time to pull the turbo, a much easier job with the engine out. I polished my internal turbo parts, coated them with anti seize and machined the inner diameter of the unison ring an additional .002. I have not had any problems for 30,000 miles +. Also, look at the EGR cooler and consider replacing it with an aftermarket item, and re solder the FICM before instillation.
Use new hoses and coolant during instillation and you will have a "bullet proof" 6.0. Otherwise, this engine will live up to it's spotty reliability reputation.