1961-1962 Chevrolet K20 Pickup Engine: 4.6L V8; Standard Rotation|Standard Duty Thermal Fan Clutch;. 1963-1967 Chevrolet K20 Pickup Standard Rotation|Standard Duty Thermal Fan Clutch;. 1968 Chevrolet K20 Pickup Engine: 5.3L V8; Standard Rotation|Standard Duty Thermal Fan Clutch;.
