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You need fans that push 4000 cfm .you are better off spending the money and buying good fans. There are also some oem fans that will work ls1 Camaro fans, Ford Taurus. Etc..actually you can get by with prob half that cfm if your not going to run Ac . Look at derale, flex a lite. Etc
Look through post here for OEM GM, Ford, Chrysler fans.
They move A LOT of air, are much cheaper and reliable than aftermarket, and are available used or at every parts store.
A lot of the A body guys use Ford Windstar fans. I've also seen GM F body and various Chrysler fans.
You can usually find dimensions on the parts store sites or Ebay.
I prefer duals, even if one quits, you have another. I also like to wire one to the AC trinary switch so you get max flow with AC on.
BTW, pass on cheap generic aftermarket fans, they don't do much. Amperage draw is a pretty good indication of airflow. It's not unusual foe OEM fans to pull 40+ amps.
I am a big fan of the C6 Corvette fan (no pun intended...LOL). It is rated at 400 watts which is how GM rates fans. I use it with the C6 fan controller that uses a PWM signal to gently turn the fan on and the speed is variable based on coolant temps. I am using the Holley EFI system that has PWM outputs, but Gen IV GM ECUs also have this capability.
I am a big fan of the C6 Corvette fan (no pun intended...LOL). It is rated at 400 watts which is how GM rates fans. I use it with the C6 fan controller that uses a PWM signal to gently turn the fan on and the speed is variable based on coolant temps. I am using the Holley EFI system that has PWM outputs, but Gen IV GM ECUs also have this capability.
I think I'm going to go the corvette fan route because I'm using the Holley Dominator set up. This is exactly what I was looking for. Could you possibly get me some measurements of the fan (not including the side tabs)?
I think I'm going to go the corvette fan route because I'm using the Holley Dominator set up. This is exactly what I was looking for. Could you possibly get me some measurements of the fan?
Look in my Cougar build thread. I have dimensions listed and there are also part numbers for the little tabs that are sold by C&R that you can weld to the radiator and mount the fan like you would on a C6 radiator.
My fan is made by Dorman, but there are numerous manufacturers that make a replacement fan for C6s. The other great part is that the fan assemblies already come with the C6 fan controller connector which is hard to source separately.
The taurus fan is part of the shroud and the volvo fan uses the same motor/blades but is removable from the shroud (so you can make a custom one)
They are a 2 speed single fan and if you pull one from a salvage yard you can grab the relay set as well which is really nice (1 power wire to the battery and two ground signal wires)
I use the volvo fan mounted to a stainless baking sheet on my S10.
stock 5.3 and a stock "HD" S10 radiator hovers around 200F in the summer 192F in the winter
I have a Nova Raditor in my 63 Econoline build. I combed the entire junkyard looking at hundreds of radiators for something that would fit. Conclusion: a dual fan set up isn't going to happen on a radiator that narrow (the fans would be like 9" in diameter), and most new cars are dual fans. I bought a Dodge Durango fan. It was the biggest diameter single fan I could find. It's 15" in diameter. You will have to cut some tabs off and make your own shroud. It was $25 at LKQ and it moves some serious air.
11-27-2015, 03:55 AM
5.3 Radiator swap Fans? 
Any feedback is great! 
