Part Type: Engine Cooling Fan Clutch. 1982 Chevrolet K30 Engine: 6.2L V8; Standard Rotation; Severe Duty Thermal Fan Clutch; w/ 4 Bolt Fan Clutch;. 1986 Chevrolet K30 Engine: 6.2L V8; Standard Rotation; Severe Duty Thermal Fan Clutch; Fan Mounting Holes are 5/16 In.;.