How do you change a 1973 corvette heater core?

Answer 1. Diconnect the battery ground cable2. Drain the cooling system and plug the water hoses from the heater connections3.

Remove the air-distributor duct stud nuts on the firewall4. Remove the right instrument panel pad, rt hand dash board braces, center dash console duct and the floor outlet duct5. Remove the radio and center dashboard console6.

Pull the distibtor duct from the firewall and remove the resitor wires when clearance is sufficient7. Remove the heater core retaining springs and remove the core8. If the core to case sealer was damaged during removal, replace with new sealer before installing new core.

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