Yes we can. I ditched my 'type' many years ago as I realized it's utter BS. The reason is because I noticed that over the years I liked girls that looked completely different and most of them didn't fit my 'type' to begin with. But I think some guys are indeed incapable of looking past their type.
I can't really look at my type to begin with because I don't have one. I know the types I do look past. The types who cut their hair really short, the ones with tattoos, those who dye their hair, druggies, plastic girls, etc.