The morphology of the primary α-Al phase cast by the Controlled Diffusion Solidification (CDS) method is mostly cellular/globular, whereas the primary α-Al in the conventionally cast samples is dendritic. Furthermore, microstructural analysis shows that the interconnectivity of the inter-dendritic liquid in the samples cast by the CDS method is superior to those that were cast via conventional methods. An improvement in the interconnectivity of the inter-dendritic liquid translates to alleviation of hot tearing tendencies of the alloy.