Originally Posted by Jorski
Normal operating temp for the LT1 is 160 degrees.
If you are normally running 20 degrees warmer than your thermostat....you have a cooling system problem.
Check, raw water pump flow, look for leaks from the circulation pump...search for blockages in the cooling passages.
Interesting, Thanks! The shop didn't seem concerned about the temp at 180, maybe they missed that it was an LT-1 when we were talking. I am heading up there in a bit to talk to them. I will talk to them about this.