20-30 ft lbs. could be a little too much as they are going into a plastic housing. I'm going to give chevy a call and get an answer! Thanks for the the reply!
What kind of bolts are these? I have a 2012 LT 1.4 Turbo sonic and they are a weird reverse hex/torx bolt. I can't find the name for them.
Does anyone know the torque specs for the thermostat housing bolts?