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-   -   fan shroud (https://67-72chevytrucks.com/vboard/showthread.php?t=338346)

jklonowski 04-10-2009 08:49 PM
fan shroud
 
hey i was wondering my truck doesn't have a fan shroud and i just had a 383 stroker with vortec heads built and put in. he told me that if i didn't have a fan shroud it was going to run hot in the summer time. i was wondering if this was true. he said the fan would not be able to draw enough air off the radiator because there is too much of a gap between the two. if this is true can anyone help me out?

Square84 04-10-2009 09:55 PM
Re: fan shroud
 
yes you do need to run a fan shroud for the cooling system to work properly

old Rusty C10 04-10-2009 10:03 PM
Re: fan shroud
 
years back i had a elcamino that wouldnt cool right because the shroud was missing... added a shroud and problem fixed

78 Chevyrado 04-10-2009 10:11 PM
Re: fan shroud
 
Think of it like this: you want to drink from a glass of water. If you use a straw (shroud) the water comes right up. But if you use no straw and just suck at the water from above the glass you get no water (airflow). the shroud is the straw the fan uses to get airflow through the radiator.

On some cars though you will be ok with no shroud IF the fan blades are at a distance of one inch or less from the radiator fins, though that way it won't pull air from the outer corners.

3r!c84 04-10-2009 11:08 PM
Re: fan shroud
 
Quote:
Originally Posted by jklonowski (Post 3249961)
hey i was wondering my truck doesn't have a fan shroud and i just had a 383 stroker with vortec heads built and put in. he told me that if i didn't have a fan shroud it was going to run hot in the summer time. i was wondering if this was true. he said the fan would not be able to draw enough air off the radiator because there is too much of a gap between the two. if this is true can anyone help me out?
around how much hp is that 383 puting out with them heads?

jklonowski 04-11-2009 05:16 AM
Re: fan shroud
 
thanks guys for the help. does anyone know a website or something that might sell them? and not to sure on the exact horsepower but he told me around 375-400.

Turbo85GMC 04-11-2009 01:55 PM
Re: fan shroud
 
Quote:
Originally Posted by jklonowski (Post 3250599)
...does anyone know a website or something that might sell them?
I know that LMC sells them. Other people may chime in with other vendors too.

powerdriver 1958 04-11-2009 02:02 PM
Re: fan shroud
 
just hit your local salvage yard

73chevyman 04-11-2009 09:09 PM
Re: fan shroud
 
78 chevyrado hit the nail on the head never would of thought of it that way but that was good explanation lol

piecesparts 04-11-2009 09:21 PM
Re: fan shroud
 
Have you considered an electric fan setup with their own shrouds?

babyJay 04-12-2009 08:46 PM
Re: fan shroud
 
Quote:
Originally Posted by piecesparts (Post 3251724)
Have you considered an electric fan setup with their own shrouds?
I was thinking the same thing (althought I havn't done it myself YET). You'll free up several ponies at the same time! :smoke:

piecesparts 04-12-2009 10:54 PM
Re: fan shroud
 
I have done the electric fans on my 84 truck and also my 91 work truck. The fans are worth some HP and also MPG.

nekkidhillbilly 04-13-2009 05:42 AM
Re: fan shroud
 
i vote e fans

camaro fans are great

Manbearpig 04-13-2009 05:44 AM
Re: fan shroud
 
I have no fan shroud or a fan in my K5 :lol:

babyJay 04-13-2009 09:43 AM
Re: fan shroud
 
Quote:
Originally Posted by Manbearpig (Post 3254049)
I have no fan shroud or a fan in my K5 :lol:
:lol:


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