Looks like that one is for a I-6. Is that the one you want? I bought the one from:
http://www.ebay.com/itm/Chevy-Truck-...-/321293976659 for my K10 suburban with a stock 350 with aftermarket AC. I did not use e fan set up that most rad sellers market. I opted for the Lincoln mark-8 set up. More money in the long run, but should serve me better.