Exxonvaldez:
If I were to make Ironsworn or characters out of infernal guard models does anyone know of a company that makes dwarf or chaos dwarf heads.
Zuh-Khinie:
http://www.tritex-games.co.uk/store/product.php?id=3740
ideal for sculpting beards on them I think…
inkpwn:
hassle free miniatures 
BeeZharr:
I used the GW Dwarfs for mine. Involved a lot of trimming and wasted plastic, but did the trick. The conversion kits may be a better way to go.