A trial prosthetic hip system has a plurality of trial stems each having a recessed bore in a proximal end thereof. At least three sets of trial necks are provided each having a connection element for inserting into the bore in the trial stems. A first set of trial necks having a valgus offset with one of the necks of the first set being anteverted, one be retroverted and one being neutral in version. A second set of trial necks is provided having a varus offset with one neck of the second set being anteverted, one being retroverted and one being neutral in version. A third set of trial necks is provided being neutral in varus-valgus, one neck of the third set being anteverted, one being retroverted and one being anteverted and each trial neck of the first, second and third sets having a coded marking on a proximally facing surface indicating the varus/valgus, anteverted/retroverted and neutral orientations.