My '66 200 used to always run hot, and when I was stuck in traffic I would start to really worry about overheating. Once I'd get moving, things would cool down again, but it was always a bit nerve wracking.
So I decided to redo my cooling, and put in an aluminum 2-row radiator, a 6-blade fan, a shroud, and an Edelbrock high flow 180 thermostat. Problem is, now it cools TOO well. When the outside temps are low and the coolant hits 180, the thermostat opens and within seconds my temp drops below 160 and then has to slowly come back up to 180. Then it drops again and keeps cycling like that. I never get above 180, and I spend a lot of time in the 160-170 range.
Now that the outside temps are higher, the drops aren't as bad and I stay mainly in the 170-180 range, but still never get above 180.
Is that ok for this engine? I thought operating temps were supposed to be more like 190-200. Do I need to switch to a higher temp thermostat?
So I decided to redo my cooling, and put in an aluminum 2-row radiator, a 6-blade fan, a shroud, and an Edelbrock high flow 180 thermostat. Problem is, now it cools TOO well. When the outside temps are low and the coolant hits 180, the thermostat opens and within seconds my temp drops below 160 and then has to slowly come back up to 180. Then it drops again and keeps cycling like that. I never get above 180, and I spend a lot of time in the 160-170 range.
Now that the outside temps are higher, the drops aren't as bad and I stay mainly in the 170-180 range, but still never get above 180.
Is that ok for this engine? I thought operating temps were supposed to be more like 190-200. Do I need to switch to a higher temp thermostat?