Heater Flapper Boxes
 

I am considering rebuilding/refurbishing the flapper boxes while the engine is out and they are accessible. Has anybody done this and what did you do? At a minimim, I would like to get them blasted & painted with some high temp paint.

Somewhere there is a thread where a guy soaked them in some rust remover and repainted them. The Results looked great! And the process seems pretty simple/easy.

i just did the same thing, i used zinc coating (electrically) can post pics next week, i took them apart and cleaned everything. Maybe i will paint them after that , but not sure yet.