Since I have finished my heater core I have an intermittent gurgle from the heater core area after shutdown. Its got to be air in the cooling system but surely it would be gone now? Is theyre a way to bleed the air out of the cooling system? 

Just run it. It will come out in time. Typically I leave thermostat out during the time I'm filling with coolant to ensure that majority of the air is removed. Empty heater will have its own air to add.

3 minutes ago, Mopar1973Man said:

Just run it. It will come out in time. Typically I leave thermostat out during the time I'm filling with coolant to ensure that majority of the air is removed. Empty heater will have its own air to add.

Thanks Mike. Im going to do a coolant flush here soon any tips other than thermostat removal to keep air out? 

1 hour ago, Marcus2000monster said:

Thanks Mike. Im going to do a coolant flush here soon any tips other than thermostat removal to keep air out? 

I have one of those units that you pull a vacuum on the system and then use that vacuum to suck in the coolant , seemed to work great for my old Jeep straight six that would have problems for days to burp ot the system. Just a thought

Yeah the vacuum method works awesome if you have the rig to do that. I normal park the truck nose up slightly and remove the thermostat and go from there. When the coolant is just about to spill over then stuff the thermostat in and finish loading with coolant.