Here is a 1979 to 1985 Chevrolet and Chevrolet trucks 305, 350, and 454 dual-groove water pump pulley. The part number is stamped 14023155. The two grooves power the fan, power steering, and air pump. It is in excellent condition; see photos. The last three pictures show fan belt placement.
----It can be picked up at Valhalla, N.Y.
Or, I can ship it if you like. Please message me your zip code for the shipping charge.