For further expansion of aluminum usage to the area where heavy dynamic loading is required in vehicles, improvement on as-cast properties of aluminum alloys and their corresponding manufacturing processes become essential.In this study, aluminum alloy A380 was modified and alloyed with the addition of nickel and strontium.Squeeze casting which provides excellent formability, close dimensional tolerance and high productivity was employed to cast both the modified and unmodified A380 under an applied pressure of 90MPa.Tensile properties and microstructure of the modified A380 alloy were compared with those of the unmodified alloy in as-cast condition.The result of tensile testing indicated that the modified A380 alloy exhibited a significantly improvement on tensile properties, specifically ultimate tensile strength (UTS: 241.6 MPa), yield strength (YS: 172.5 MPa) and resilience (200.3 KJ/m3).An optical microscope and a scanning electron microscope (SEM) have been used to analyze the microstructure.Examination of the analyzed microstructures manifests the presence of Ni-containing intermetallic phases and the modified eutectic Si phase with refined morphologies due to the Ni and Sr addition.The considerable enhancement on the as-cast strengths of the squeeze cast Ni and Sr containing alloy over those of the conventional A380 alloy should be considered as a consequence of the microstructure modification.