190-200 is best temp any motor well run it, best performance's and life spanned
180.
180.
195 to 210 degrees.
Between 195-210 degres.
mine runs at 190 degrees unless I get in traffic and then it goes to about 210 degrees.
195 to 210 degrees is NORMAL operating temperature.
180 degrees
180 to 195 degrees is normal.
I believe 180 F for most of the older small block chevy. Make sure the head gasket has "steam holes" since only the 400 uses them. The steam holes are above and below adjacent cylinders. Dennis
A faulty sensor in the engine block.
They both are under the valve covers, where the oil is slinging everywhere, when the motor is running. Perfectly normal.
No.