Re: 1991 Cummins Bluebird
That has the same front as my 92 TC2000. They changed to the true flat nose in 92.5. After 92.5 they addressed the poorly designed radiator, Mounted the turbo down beside the engine block, rather than up in the air just under the dog house. Positioning the turbo down by the side of the block make less heat come through the dog house cover, and makes for better down pipe position on the exhaust. I kind of prefer the hood, as it makes working on the front much easier.
"Don't argue with stupid people. They will just drag you down to their level, and beat you up with experience."
Patently waiting for the apocalypses to level the playing field in this physiological game of life commonly known as Civilization