Genealogy / THE MEANING AND RESEARCH OF MY POLISH LAST NAME, SURNAME? [4500]

Can anyone help me with the name Wilczak? is it the same as Wilczek or Walczak?

Genealogy / THE MEANING AND RESEARCH OF MY POLISH LAST NAME, SURNAME? [4500]

Hi,

The spelling of my families last name changed from WILCZAK to VILCHOCK when they came to america, Im guessing late 1800's early 1900's. I've heard WILCZAK means wolf in polish and that my family came from an area near Krakow? Can you help me out? Is there a coat of arms for WILCZAK?