New engine running HOT
My 408 was broken in and tuned on the dyno without a thermostat. I have a new drilled 180 degree thermostat ready to go in, that I just checked on the stove.
The one on the top left is NEW, the one on top right is NOS, the one on the bottom is a known good thermostat. The temp of the water is 190 and they are all 180 degree thermostats. You can see the new one is open wider than the other two. When the temp hit 200 it was still open more than the others. That's the one I'm going to run.
My 408 was broken in and tuned on the dyno without a thermostat. I have a new drilled 180 degree thermostat ready to go in, that I just checked on the stove.
The one on the top left is NEW, the one on top right is NOS, the one on the bottom is a known good thermostat. The temp of the water is 190 and they are all 180 degree thermostats. You can see the new one is open wider than the other two. When the temp hit 200 it was still open more than the others. That's the one I'm going to run.
