I am putting a big block in my 4th gen and was wondering if any of you guys know the cfm of the stock cooling fans? I have been told to look for something in the range of 3300-4000 cfm's.

I am replacing my radiator but trying to avoid changing the fans due to the high cost. I would like to just buy the electric switch kit and run my stock fans...

Ideas???

 

I've heard they're around 3400cfm

 

that sounds likely

 

Wow, a big block in a 4th gen. If you pull it off that will be one bad machine. Good luck.

 

Here's someone else with a BB Chevy in a 4th gen. Maybe this can help you out.

http://home.bellsouth.net/p/s/commun...=45500&ck=http

 

You SHOULD be alright as long as you get a new radiator and the rest of the cooling system is up to snuff. Water Wetter does wonders as well.

 

I am getting a new radiator for sure. Plus I will be running a brand new elctric water pump so the rest of the system should be good to go.

I was praying that the stock fans would work because fans can be expensive and my budget has already shot through the roof compared to what I started out trying to do.

Now, to get it on the road this year......