Beginning life as an option for the Buick Special, the Skylark trim package was popular enough to merit its own model beginning in 1964. Sitting on GM's A-Body architecture, the base engine was a 225 cubic inch V6, with two versions of Buick's 300 cubic inch V8 as options. However, if you really want to give your old Skylark a shot in the veins, we have the parts necessary to make dropping in a Gen III/IV LS power a bolt-in affair.