1967 Chevrolet G20 Van Engine: 3.8L L6; Standard Rotation; Standard Duty Thermal Fan Clutch;. 1967 Chevrolet G20 Van Engine: 4.1L L6; Standard Rotation; Standard Duty Thermal Fan Clutch; w/ A/C;. 1968 Chevrolet G20 Van Engine: 3.8L L6; Standard Rotation; Standard Duty Thermal Fan Clutch;.
