Mild facelifting including new grilles and taillights highlighted the 1964 full-sized Pontiacs. Engine and transmission offerings were unchanged from 1963 except for a new GM-built Muncie four-speed manual replacing the Borg-Warner T-10 unit. Also new for 1964, was the 2+2 option package available on Catalina two-door hardtops and convertibles that included bucket seats, heavy-duty suspension and other performance equipment, along with the same selection of and V8s found in other Catalinas. The 64 2+2 was a trim option only with the same standard engine as the base Catalina. It was only until 1965 that the 421 engine became the standard engine on the 2+2.