Electric fan conversion

[Jon87V20]

Hi, Everyone:

I'm planning on installing an electric fan in my '87 Chevy Suburban V20 with a 350ci TBI. Is there anything I should know going in to this, or is it as simple as installing the fan? Should I wire this up any way in particular? Any suggestions on fans? I haven't bought one yet.

Thanks!

Edit: Also, should I be trying to aim for a certain CFM and diameter on this?

[VileZambonie]

If you go this route you need a properly fitting shroud that will be able to create the most pull allowing it to work more efficiently. You can wire it up with an adjustable relay control or with a thermal switch and relay (look at my 74 GMC post for a diagram) and you need a good alternator.

[75gmck25]

There are lots of complete fan kits out there, with controllers, but they can get expensive.  Make sure the fan has a shroud, and that it covers as much of the radiator as possible.  In many cases you might have to use sheet metal to extend the fan shroud to get better coverage.

Another option is a complete junkyard fan setup, and several Ford models are popular.  Do a web search for Windstar fans (dual fans), Taurus fan (single fan, dual speed), and Lincoln Mark VIII fans and look at the articles.  It is a very common conversion. Its best if you get a complete fan setup, including the controller, since they draw a lot of amps and it needs a high amp controller and relays.  However, you can still buy the Ford fans new from a parts store for a reasonable price. 
This is one example of a Windstar fan install article.  https://ls1tech.com/forums/conversions-hybrids/1360479-s-windstar-electric-fans.html

Bruce

[Captain Swampy]

A dual fan from an LS1 camaro works well. It's supposed to fit well on our radiators. I have it on my Dodge and it works great.