1978 Pontiac Grand Am Engine: 4.9L V8; Standard Rotation|Standard Duty Thermal Fan Clutch|w/o AC;. 1978 Pontiac Grand Am Engine: 5.0L V8; Standard Rotation|Standard Duty Thermal Fan Clutch|w/o AC;. 1979 Pontiac Grand Am Engine: 3.8L V6; Standard Rotation|Standard Duty Thermal Fan Clutch;.
