Any recommendation on what size of a electric fan to install on a 67 with a 289. Someone must have done this to their car.

 

As big as possible, which usually means >2500CFM. Taurus and Mark VII fans are common swaps because they're common, cheap, and pull a lot of air at full power.

Keep in mind, you may need to consider upgrading your alternator to meed the fan's power demands. Good electric fans will pull a lot of power, leaving little left while idling along in stop and go traffic.

 

Why ?

 

Are you having cooling issues or planning a motor swap?

 

Just freeing up some HP.

 

A thermal clutch fan will do that for less money and a lot less work.

Ford often used them on performance engines.

 

Thanks .I have this set up with a new clutch fan.Think I will leave what I have.I thought I might get more some more HP by going with electric fan. Thanks

 

Even a clutch fan adds unsprung weight to the rotating assembly that an electric avoids. I admit being a fan of electric fans...all the cooling when you need it...NO parasitic load when you dont.

I have a 16" and it more then cuts the mustard.

I dont have A/Cto be fair, but no amount of traffic on a 110deg hwy will make it overheat and I'm running some seriously advanced timing.

 

Any idea on what CFM it is that you are using.

 

As long as your not running the stock fan you are doing pretty good. If you had the stock fan I would say go electric but if you have the clutch fan and everything is working fine I would leave well enough alone.

-Gun