Resprayed the radiator and ordered a set of stainless exhaust flange nuts.
No, left the steel studs in as only 1 needed replacement. Thought I'd go with the stainless nuts for ease of disassembly should it be necessary in the future. Was aware of galling so figured dissimilar metals was the way to go. Plenty of copper grease is my middle name . Once you've seen a seized exup valve, you know it makes sense
Took it for a spin around Brecon in the sun