1961 Chevrolet P20 Series Engine: 4.6L V8; Standard Rotation|Standard Duty Thermal Fan Clutch;. 1961 Chevrolet P20 Series Engine: 5.7L V8; Standard Rotation|Standard Duty Thermal Fan Clutch;. 1962 Chevrolet P20 Series Engine: 4.6L V8; Standard Rotation|Standard Duty Thermal Fan Clutch;.
