Spectre SB Chevy (w/Long Water Pump) Double Lower Groove Crankshaft Pulley - ChromeSpectre s high quality crankshaft; alternator and engine pulley sets are designed to help dress up your engine compartment. All of our pulleys are designed to work in OE applications and with the OE style serpentine or v belt configuration. This Part Fits: Year Make Model Submodel 1977,1980 Buick Century Base 1977 1979 Buick Century Custom 1980 Buick Century Estate 1978 1980 Buick Century Limited 1978 1979 Buick Century Special 1978 Buick Century