The present disclosure relates to equipment and techniques for centrifugal casting of metallic materials. The disclosure provides a mold structure for operative association with a rotatable assembly of a centrifugal casting apparatus, the mold comprising: at least one cavity having an entry port structured to receive molten material in a general direction of centrifugal force generated by rotation of the rotatable assembly; and a gate in communication with the entry port of the at least one cavity, wherein the gate includes at least one tapered portion positioned adjacent to the entry port of the at least one cavity, wherein an average cross-sectional area defined by the at least one tapered portion of the gate is greater than a cross sectional area defined by the entry port of the at least one cavity. According to one aspect of the present disclosure, the mold may include at least two cavities each having an entry port structured to receive molten material in a general direction of centrifugal force generated by rotation of the rotatable assembly, and the cavities may share a common gate in communication with both entry ports of the cavities. According to another aspect of the present disclosure, a method of assembling a centrifugal casting apparatus comprises positioning a wedge on a rotatable axis. The method also includes positioning at least two molds into sealing engagement with the wedge where each of the at least two molds comprises a front face and defines at least two cavities extending from the front face into the mold. The method further includes defining a sprue chamber structured to receive molten material where at least a portion of the sprue chamber is defined by at least a portion of the front faces of the at least two molds. According to another aspect of the present disclosure, a centrifugal casting method of producing a casting of a metallic material comprises positioning a rotatable assembly comprising a plurality of gates and a plurality of cavities positioned about a sprue chamber such that the plurality of gates and the plurality of cavities are positioned to receive molten metallic material from the sprue chamber in a general direction of centrifugal force. Each of the plurality of gates is coupled to one of the plurality of cavities and at least two of the plurality of cavities are stacked. The method further comprises rotating the rotatable assembly. The method further comprises delivering a supply of molten metallic material to a sprue chamber.