Size of electric fan needed? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Primered_69 · 11-14-2002, 06:19 PM

I have a 305 that will some day in the near future have a cold air a/c installed. It has an electric single fan (unsure of the size it was there when we bought it) but I do not know if it is sufficient.

So a 305 with air needs how big of a electric fan setup?

Primered_69 · 11-14-2002, 10:44 PM

anyone

cableguy0 · 11-14-2002, 11:07 PM

well my opinion is that u can never have too much cooling. i'd get the biggest fam that will mount to the radiator. but first i'd just see how things work out with what ya got.

crazy longhorn · 11-15-2002, 01:22 AM

Here is a site with a little info on cfm requirements on the electric fans..... http://www.perma-cool.com/Catalog/Cat_page16.html

Low69CST · 11-15-2002, 04:29 AM

Flex-a-lite has a 200 dollar dual 12" kit that is rated for both big and small blocks with a/c. i bought one for my truck, i get it in tomorrow.

Long Knight · 11-15-2002, 01:26 PM

Check out this pic from Blazerman

11-14-2002, 06:19 PM	#1
Primered_69 Registered User Join Date: Sep 2002 Location: Fort Worth Posts: 1,409	Size of electric fan needed? I have a 305 that will some day in the near future have a cold air a/c installed. It has an electric single fan (unsure of the size it was there when we bought it) but I do not know if it is sufficient. So a 305 with air needs how big of a electric fan setup? __________________ 1969 Chevy LWB - with shaved handles; 3 1/2 front/ 5 1/2 rear drop; (waiting to be put back together)

11-14-2002, 10:44 PM	#2
Primered_69 Registered User Join Date: Sep 2002 Location: Fort Worth Posts: 1,409	anyone __________________ 1969 Chevy LWB - with shaved handles; 3 1/2 front/ 5 1/2 rear drop; (waiting to be put back together)

11-14-2002, 11:07 PM	#3
cableguy0 Senior Member Join Date: Apr 2000 Location: Delta,Pa Posts: 14,948	well my opinion is that u can never have too much cooling. i'd get the biggest fam that will mount to the radiator. but first i'd just see how things work out with what ya got. __________________ Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.

11-15-2002, 01:22 AM	#4
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	Here is a site with a little info on cfm requirements on the electric fans..... http://www.perma-cool.com/Catalog/Cat_page16.html __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

11-15-2002, 04:29 AM	#5
Low69CST Registered User Join Date: May 2000 Location: Frankfort, Kentucky, USA Posts: 2,163	Flex-a-lite has a 200 dollar dual 12" kit that is rated for both big and small blocks with a/c. i bought one for my truck, i get it in tomorrow. __________________ '69 CST Short fleetside Lowered, 400 small block, 700R4, 4 wheel disc brakes, front sway bar & rear camaro sway bar (in progress) '87 V10 4x4 Short Fleetside Quad Suspension and Dual Tanks

11-15-2002, 01:26 PM	#6
Long Knight Spank 'em if you got 'em! Join Date: Nov 2002 Location: Kansas City Posts: 628	Check out this pic from Blazerman Attached Images __________________ Long Knight '71 C-20, 350ci, TH350, Edl. 1406 Carb w/elec.choke, Ignitor ignition, Viper Tires, Orange Dipstick



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