1983 Ford E-350 Econoline Engine: 6.9L V8; Standard Rotation; Severe Duty Thermal Fan Clutch;. 1984 Ford E-350 Econoline Engine: 6.9L V8; Standard Rotation; Severe Duty Thermal Fan Clutch;. 1985 Ford E-350 Econoline Engine: 6.9L V8; Standard Rotation; Severe Duty Thermal Fan Clutch;.