1977 Buick Century Submodel: Wagon; Engine: 5.7L V8; Blower Motor Switch;. Lever Selector Blower Switch. 1977 Buick Century Submodel: Wagon; Engine: 6.6L V8; Blower Motor Switch;. 1978 Buick Century Submodel: Wagon; Engine: 5.7L V8; Blower Motor Switch; w/ AC;.
