what do I need to cool a small block chevy w/1 fan

either a 4 core or aluminuim radiator

can I get away with 1500 or do I need more

 

I would go with S Blade Pattern pulling about 3000 CFM with a good shroud inplace... Depending on your weather

 

that is a huge overkill

what was the cfm on the electric fan that gm used before it went to the dual fan setup

 

Where I live(115+) that is no where near overkill as a matter of fact that is just right for using the ac in that weather. Anywho GM's single fan for the camaro pulled about 1350 CFM according to a direct replacement that napa offers.. As I said before it all depends on your weather...Whats it like where you live?

 

I live in southern IL

on my 69 c-10 I put a radiator and electric fan out of a 86 TA

it works great

I dont like the horsepower robbing clutch fan which also robs mpg

running the fan direct robs power also so i use a thermostat

I am out of electric fans and have been looking at ebay and wanted to make a more educated purchase

thank you

 

Whats the temperature like over there? Ive got the stock single electric fan that came off of my 89 Camaro with a new motor in it that i might wanna sell...