That's a really good way to make the average 4.3L V6 S10 overheat. Just sayin. I'm pretty sure the same goes for the older 2.8L models.I installed a pusher fan and removed the clutch fan. That freed up a lot of room.
The original fan and fan clutch system on the S10 is way more than adequate to cool the engine. The 4.3L V6 S10s with the automatic transmission are rated to tow up to 6,000 pounds. I use 1997 with the Vortec 4.3L V6 to tow over 5,000 pounds regularly with no overheating issues. Of course, I have replaced my fan clutch whenever I've replaced the water pump. Both are replaced together as a unit whenever either fails.
I do have a steering cooler (bigger than the stock one), and an add on transmission cooler. The transmission cooler has a pusher fan in front of it. The steering cooler is actually between another pusher fan and the AC condenser. I added the condenser fan first because the one weakness of the stock S10 fan is that it doesn't keep the AC condenser cool enough in hot summer weather. Both my auxiliary coolers are in front of the AC condenser on mine.