Head gasket on 1997 Chrysler LHS

My car was overheating.Replaced thermostat,housing,sending unit,vacumn.fan relay and bleed it.Still overheats.How do I know if its the head gasket(Has an automatic shut down when hot)

Asked by for the 1997 Chrysler LHS
1 answer
need ot remove plugs and put shop air into cylinder with piston at bottom dead center to see if coolant comes out the radiator.