I would say nay on the 2.8 also. I have an '85 4x4 S 10 Blazer with one, and while it serves well in that application, it will be grossly underpowered for a full size truck. I haven't experienced any bearing issues (I do change the oil religiously, though) but can vouch for the feul system issues, especially when the heat plate quits working. I can also vouch for the vibration issues. There are also other issues, the block has a unique bellhousing pattern not compatible with any of the other GM V engines. So if it were used, there would be issues with the motor mounts at the rear, and if an automatic were used, the entire trans would have to be changed if a V8 were swapped in later. Oh, and another thing, the 2.8 is a noted leaker.
