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Old 07-25-2009, 09:44 AM   #1
31-5window
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Fan shroud

I have 72 blazer basket case has 396 when I got it motor was in but hitting fire wall so got some info off the board here moved cross members up 2 inchs everything is going together. But now what are the fan shroud options is there a shroud that will work or do get rid of stock fan go to electric fans?
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Old 07-25-2009, 09:57 AM   #2
turp mcspray
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Re: Fan shroud

Get a 2wd bb shroud. Sometimes used ones come up or you can buy a new one.
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Old 07-25-2009, 05:54 PM   #3
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Re: Fan shroud

Okay thanks for the info. 2wd that much shorter?
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Old 07-25-2009, 06:06 PM   #4
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Re: Fan shroud

Quote:
Originally Posted by 31-5window View Post
Okay thanks for the info. 2wd that much shorter?
If you mean front to back (from radiator to firewall) yes, WAY shorter.
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Old 07-25-2009, 06:40 PM   #5
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Re: Fan shroud

Quote:
Originally Posted by 31-5window View Post
Okay thanks for the info. 2wd that much shorter?
Scott (Turp Mcspray) is right on on that deal, 4x4 shroud is 9" deep and a 2wd shroud is about 5 1/4" deep.

Later---DAC
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1970 GMC K5 Jimmy Custom 4X4 Mom's driver from 1971 to 2001!! Under rebuild!
1972 GMC C2500 Pickup owned since 1979 Needs a rest and refurbish!
1955 GMC 100 2nd design driven almost daily!

Rest In Peace Mom. "Dolly" 7/15/23 - 5/18/09
GMC driver for 30 years!


Last edited by 70gmcjimmy; 07-25-2009 at 06:41 PM.
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Old 07-25-2009, 07:14 PM   #6
turp mcspray
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Smile Re: Fan shroud

Quote:
Originally Posted by 70gmcjimmy View Post
Scott (Turp Mcspray) is right on on that deal, 4x4 shroud is 9" deep and a 2wd shroud is about 5 1/4" deep.

Later---DAC
Out of curiosity I measured my 2wd big block shroud and it is 4 3/8" deep.
On my truck I moved the engine forward 2" from the small block location and with a factory water pump,pulley,and clutch fan set up (borrowed from my buddys 2wd big block truck for mock up), the fan set perfectly in my shroud.
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Old 07-25-2009, 07:48 PM   #7
70gmcjimmy
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Re: Fan shroud

Quote:
Originally Posted by turp mcspray View Post
Out of curiosity I measured my 2wd big block shroud and it is 4 3/8" deep.
On my truck I moved the engine forward 2" from the small block location and with a factory water pump,pulley,and clutch fan set up (borrowed from my buddys 2wd big block truck for mock up), the fan set perfectly in my shroud.
Sorry, Scott I mistakenly gave a measurement of a small block 2wd shroud, before I realized you specified BB.

Later---DAC
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1970 GMC K5 Jimmy Custom 4X4 Mom's driver from 1971 to 2001!! Under rebuild!
1972 GMC C2500 Pickup owned since 1979 Needs a rest and refurbish!
1955 GMC 100 2nd design driven almost daily!

Rest In Peace Mom. "Dolly" 7/15/23 - 5/18/09
GMC driver for 30 years!

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