Are there any GM Techs out there?

[Tom Meyer]

We have always put a hose loop so that coolant flows as the engineers designed it. It is almost easier to remove the exhaust manifold to get to the thermostat. We have put are temp gauge fitting in the flat spot by the hose outlets. There is a bolt holding the tube from the thermostat to the water pump, push the tube into the pump there is a o ring on it the twist and remove. Tom