No factory reading of EGT's on these trucks.
You can pick up a gauge and probe kit and install one yourself. To install you would drill and tap (1/8" NPT) the drivers side manifold near the #8 port. To access lay on your back under the truck and look straight up and you'll see there's plenty of room to work. Drilling and tapping in this location also allows the chips to fall down (wear safety glasses) instead of inside the manifold.
I picked up this one on ebay years ago. It is programmable with an alarm piezo speaker that I added. It came with the probe and was around 100 bucks.
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Oh, congrats on your migration to the 6.0 world.