Radiator Shroud from the fan distance - The 1947 - Present Chevrolet & GMC Truck Message Board Network

stevewhitmore · 11-22-2009, 09:36 PM

Hey Guys,
Just a easy question I hope.
My fan blades sit back about 3-4 inches back from the shroud, is this correct or normal?
It was a 6 Cyl and is now a 350, so does the 350 sit back further?, it just seems like it should be closer, if nothing else for safety because the fan blades are just sitting out there.
I need a new shroud anyway and was thinking of getting an AC shroud
(I have no AC) because the opening is longer but a guy at Carlisle said it would not bolt up right. There is currently a homemade piece of bent sheet metal riveted to the top of the shroud which looks like crap as well.
The truck runs cool so that is not a problem
Any ideas or suggestions?
Thanks

Shyguy · 11-22-2009, 10:04 PM

If I remember right the fan blades should set about half way in the shroud.

Danny

Andy4639 · 11-22-2009, 10:05 PM

A factory setup should have the blades about 3/4 of the way inside the shroud for max cooling. If the truck was a orignal 6 cyclinder then you have the motor sitting in the six cyclinder location and not the v-8 location. This would explain why the blades are sitting outside the shroud.

unclewatts · 11-23-2009, 03:12 AM

I'll bet your distributor is real close to your firewall.

stevewhitmore · 11-23-2009, 08:18 AM

Thanks that is what i was afraid of, I think you all are correct, so short of moving the motor forward is there anything I can do with the shroud
or will an AC type shroud work and bolt up to the same location?

Longhorn Man · 11-23-2009, 06:37 PM

get a shroud for a 350 4X4, there engines are mounted in the same location yours is.

11-22-2009, 09:36 PM	#1
stevewhitmore Registered User Join Date: Mar 2009 Location: Harpers Ferry, W VA Posts: 144	Radiator Shroud from the fan distance Hey Guys, Just a easy question I hope. My fan blades sit back about 3-4 inches back from the shroud, is this correct or normal? It was a 6 Cyl and is now a 350, so does the 350 sit back further?, it just seems like it should be closer, if nothing else for safety because the fan blades are just sitting out there. I need a new shroud anyway and was thinking of getting an AC shroud (I have no AC) because the opening is longer but a guy at Carlisle said it would not bolt up right. There is currently a homemade piece of bent sheet metal riveted to the top of the shroud which looks like crap as well. The truck runs cool so that is not a problem Any ideas or suggestions? Thanks

11-22-2009, 10:04 PM	#2
Shyguy Junior Member Join Date: Dec 2006 Location: Southeast Missouri Posts: 2,436	Re: Radiator Shroud from the fan distance If I remember right the fan blades should set about half way in the shroud. Danny __________________ '67 Chevy C-20 short stepper - build complete, 454/SM-465. '75 C-30 Single Cab DRW-350 small block/NP-435. '77 GMC-6500 Dump Truck, 427 Tall Deck. '92 GMC K-3500 Duallie, 454/4L80E.

11-22-2009, 10:05 PM	#3
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: Radiator Shroud from the fan distance A factory setup should have the blades about 3/4 of the way inside the shroud for max cooling. If the truck was a orignal 6 cyclinder then you have the motor sitting in the six cyclinder location and not the v-8 location. This would explain why the blades are sitting outside the shroud. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

11-23-2009, 03:12 AM	#4
unclewatts 70 Chevrolet=Obsession Join Date: Jun 2009 Location: nice ca Posts: 1,067	Re: Radiator Shroud from the fan distance I'll bet your distributor is real close to your firewall. __________________ I'm Just like my truck. Old, Ugly and Grouchy. Except my truck starts easily in the morning and doesn't smoke! IT'S NOT EASY BEING GREEN! -Kermit the frog 1970 Chevrolet C-10 Longbed Stepside : 350, Muncie M20, 3.08 GM corp. positraction Forest green exterior/light green interior(Where all my money goes) 1996 Toyota Corolla (Parts runner)

11-23-2009, 08:18 AM	#5
stevewhitmore Registered User Join Date: Mar 2009 Location: Harpers Ferry, W VA Posts: 144	Re: Radiator Shroud from the fan distance Thanks that is what i was afraid of, I think you all are correct, so short of moving the motor forward is there anything I can do with the shroud or will an AC type shroud work and bolt up to the same location?

11-23-2009, 06:37 PM	#6
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: Radiator Shroud from the fan distance get a shroud for a 350 4X4, there engines are mounted in the same location yours is.



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