OIL/WATER TEMP

[Chamberpains]

Well, My gamble was wrong and hammerhead owes the Bookie that took his bet. Just stay in Canada buddy I dont think those people are willing to go International to collect.....

Any way that is the correct and up to date calibration. So your good to go there. Now what you describe sounds like perfectly normal engine temps when your pulling a hill. The high 225 temp maybe an old code or a spike from multiple reasons. Maybe an air pocket in coolant or maybe you turned the engine off to soon after a hard pull. There a lot of simple reasons for just 1 occurrence. Clear that code out and start monitoring your temps as you drive. 210 is when the fan kicks on and is perfectly normal under a pull. Your not going as fast so your fan kicks on to help pull air across the engine. The harder you stand in it or the slower you go will make it cycle more. Nothing to worry about unless the fan cannot bring the temps down. Also having the bigger HP/torque cal is putting more fuel to the truck. Obviously more fuel burnt equals faster hotter temps.
Being that your ecm was probably not reset with the new long block your data is going to be a mix of the 2 engine blocks history. But I would look under abuse history in Insite and view the actual reported temps of the oil and coolant just to get an idea of how often your truck was ran way hot. Your gauges may have been lying to you for a long time.
Other than that it sounds like your guage are the culprits. Try tapping on the guage if it jumps around then your guage is wore out or faulty. Check the plugs and wiring for bent pins or corrosion and abrasions, if none, Put a good set of gauges in and drive on.
If you have any other questions or notice something strange let us know. We'll probably place bets on those causes too.