Coolant system pressurising but not overheating?!

[D.r.1989]

Ok so Iv done the headgasket, inc head skim and pressure test. Hoses still pressurising as they were, removed thermostat, changed rad, expansion tank, rad cap. All pipes are getting hot with no cold spots and heaters are hot, water is flowing freely.

Really going out of my mind over this! Anyone with some more ideas?

Thanks for all of the above ideas too