Pusher or puller fans? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Number21 · 09-11-2009, 08:49 PM

I have a '79 1 ton with a 350. My fan shroud is broken and the mechanical fan is bent, so they need to go. I was planning on installing an electric "puller" fan on the back of the radiator as is normally done.

Then I noticed how much space I have between my grille and radiator. I don't have AC or an automatic trans, so all that's there is the radiator. Is there any particular reason why I shouldn't try to mount "pusher" type fans between the grille and radiator as opposed to behind the radiator? It already runs cold as it is, I think I need a new t-stat....

mongoose · 09-11-2009, 08:51 PM

i don't think they push as much air..

Mike_D · 09-12-2009, 03:58 PM

puller is the way to go. Be-cool makes a nice fan with a built in thermostat

BLE 'BURBAN · 09-12-2009, 06:53 PM

I've always installed pusher fans between the grill & Rad and have had no problems at all with over heating in the past.

gchemist · 09-12-2009, 09:23 PM

Pull it!!

09-11-2009, 08:49 PM	#1
Number21 Registered User Join Date: Aug 2009 Location: Oregon Posts: 611	Pusher or puller fans? I have a '79 1 ton with a 350. My fan shroud is broken and the mechanical fan is bent, so they need to go. I was planning on installing an electric "puller" fan on the back of the radiator as is normally done. Then I noticed how much space I have between my grille and radiator. I don't have AC or an automatic trans, so all that's there is the radiator. Is there any particular reason why I shouldn't try to mount "pusher" type fans between the grille and radiator as opposed to behind the radiator? It already runs cold as it is, I think I need a new t-stat....

09-11-2009, 08:51 PM	#2
mongoose Registered User Join Date: Feb 2009 Location: slurrey, bc. Posts: 1,134	Re: Pusher or puller fans? i don't think they push as much air.. __________________ -'73 c/10 - Low with Go - will be complete... probably never. -'90 2wd Blazer - well... soon enough anyways. -'84 SWB - the daily gas guzzler.

09-12-2009, 03:58 PM	#3
Mike_D Registered User Join Date: Jan 2009 Location: South Bay, Ca Posts: 36	Re: Pusher or puller fans? puller is the way to go. Be-cool makes a nice fan with a built in thermostat

09-12-2009, 06:53 PM	#4
BLE 'BURBAN In the Forgotten far North. Join Date: Jul 2007 Location: Anchorage, Alaska Posts: 2,627	Re: Pusher or puller fans? I've always installed pusher fans between the grill & Rad and have had no problems at all with over heating in the past. __________________ 1987 R3500 CREW CAB DUALLY (BIG RED)Acquired 06/12/2015 1990 chevy suburban V2500 5.7L My cluster Mods-Nov 2007 overhead console Stereo install Round 2 Aug 2009 Heated/turn signal mirror upgrade

09-12-2009, 09:23 PM	#5
gchemist BAD BOW-Silverado XST Join Date: May 2000 Location: Senior Member from Austin, TX Posts: 6,431	Re: Pusher or puller fans? Pull it!! __________________ Gerardo a.k.a. Mad Chemist Silverado XST videos



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