how to change a 1973 corvette heater core

[jolinari]

1. Diconnect the battery ground cable

 2. drain the cooling system and plug the water hoses from the heater connections

3. Remove the air-distributor duct stud nuts on the firewall

4. Remove the right instument panel pad, rt hand dash board braces, center dash console duct and the floor outlet duct

 5. Remove the radio and center dashboard console

 6. Pull the distibtor duct from the firewall and remove the resitor wires when clearance is sufficient

7. Remove the heater core retaining springs and remove the core

8. If the core to case sealer was damaged during removal, replace with new sealer before installing new core