I was just trying to get some input on getting rid of my pulley fan and buying an electric one. My car is a 1969 GTO with a 400 engine. I have a standard radiator that is probably original. Would I need to get a shroud to go around the fans? What CFM would I need. My car is pretty stock. I just rebuilt the engine and had it bored 30 over. That's about it. Anything would help.
The best and most trouble free set up for a mostly original engine is the stock clutch type fan with a fan shroud. For highly modified engines at max HP, electric fans can be an improvement, but on a stocker/slightly modified, they are a lot of expense and added complexity, IMHO. Others running electric fans are sure to chime in.
I'm running twin electrics on my 69 and I like them, but first let me ask you why you want to do this? Are you trying to solve a cooling problem, or are you looking for "free" horsepower by getting rid of the engine driven fan?
FYI, I'm also running a big aluminum radiator and my engine has been somewhat "surgically enhanced" to up the power. For a more or less stock setup, I agree that the original setup is probably the best and the most trouble-free. If you convert to electric(s), you're also going to have to up your game alternator-wise because the stock 65 amp alternator won't be able to keep up.
Electric fans are easy to set up. The aftermarket ones new are a waste of money, look at a junkyard one of the best bang for the bucks are the mid 90's taurus fans. It is a single fan that pulls 4,000 cfm's (people are using these on swap LS cars that are highly modded), The other one I suggest is the cooling fans from a 4th gen F-body, but you might need to modify it a little the shroud is a bit bigger than stock rads..
PO put a twin fan setup with a built in shroud and aluminum radiator in my car. Works well, the only thing I dont like is that this particular unit is a little loud with somewhat of a high pitch wine. I know they make much quieter fans you can buy. A stock clutch fan can be loud, but at least it is a "roar" and not a whine. If I had a decent clutch fan & radiator, I would not spend the money on electric. If you need to start over, maybe not a bad option. At least your timing light wires will not get caught in the fan...
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