1964 Chevy Impala Chrome IMPALA Letter Set. (Not for Station Wagon) Here is a set of Impala Letters for your favorite Chevy. They are most excellent reproductions of the original. They feature show quality chrome and are die cast metal. They measure about 9/16" tall with two mounting pins. Notice that the letters are sloped. The listing is for a set (one side, as pictured) and includes new press nuts.