recommendations please 4 or 6 blade fan

[35smod]

Im looking at switching my motor over to gas would you guys recommend a 4 or 6 blade fan to keep it cool thanks for the opinions

[bob75]

Four blade 19 in

[25drtrkr]

Add to above post.....GM 36 deg pitch. Normally its a little overkill, but I'd rather be a little cool than hot, esp. with a new setup.

[stock car driver]

I run gas in a mod with a 18" 2 blade and run right on my stat all the time, 406 or crate motor. I do have a shroud.

[wallbangerII]

If a two blade works on gas i should not have trouble on alcky.
Currentley running about 180 to 185 ?? No shroud. FOUR BLADE ????

[stock car driver]

If a two blade works on gas i should not have trouble on alcky.
Currentley running about 180 to 185 ?? No shroud. FOUR BLADE ????

that's too cold for alky. I run a plastic fan when I run alky about half inch from the radiator and tape up the bottom half of the radiator so temps run about 200 to evaporate the alky from the oil.