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Old 04-25-2012, 03:48 PM   #1
BB72CHEVKT
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need part# for 4 core sb fan shroud
Is anyone running a four core radiator with a small block and 2wd from the factory? If so could you get me the part number for your fan shroud?

Thanks
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Old 04-25-2012, 04:28 PM   #2
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Re: need part# for 4 core sb fan shroud
I would like to know this too....
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Old 04-25-2012, 04:39 PM   #3
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Re: need part# for 4 core sb fan shroud
me too
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Old 04-25-2012, 04:54 PM   #4
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Re: need part# for 4 core sb fan shroud
Before I found the correct deeper shroud for my 4X4, I ran a regular 2WD small block V8 shroud on the 4 core radiator and it fit fine. The fan just was outside of it because the engine sits back further on a 4X4 than 2WD. I don't have a GM part number but reproduction shrouds are readily available from various vendors.
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Old 04-25-2012, 05:38 PM   #5
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Re: need part# for 4 core sb fan shroud
I have heard the repop's are no good. Anybody have something nice to say about the repops and where they got theirs?
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Old 04-26-2012, 09:37 AM   #6
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Re: need part# for 4 core sb fan shroud
ttt
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Old 04-30-2012, 10:19 AM   #7
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Re: need part# for 4 core sb fan shroud
ttt
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Old 04-30-2012, 11:40 AM   #8
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Re: need part# for 4 core sb fan shroud
Parts book lists fan shroud as:

3901443 - 71-72 C Models w/350 V-8 w/HD Rad
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Old 04-30-2012, 11:51 AM   #9
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Re: need part# for 4 core sb fan shroud
Quote:
Originally Posted by GruntMoanCough View Post
Parts book lists fan shroud as:

3901443 - 71-72 C Models w/350 V-8 w/HD Rad
Gracias senior.
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Old 04-30-2012, 01:15 PM   #10
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Re: need part# for 4 core sb fan shroud
Quote:
Originally Posted by GruntMoanCough View Post
Parts book lists fan shroud as:

3901443 - 71-72 C Models w/350 V-8 w/HD Rad
This thread was spawned off another thread about 4-row radiators.
The above part number, "w/350 V-8 w/HD Rad", does that imply that there is a different part number for "w/350 V-8 without HD Rad"????
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Old 04-30-2012, 01:32 PM   #11
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Re: need part# for 4 core sb fan shroud
PN for all other 2wd sbc V8's w/o AC and/or HD Rad is listed as #3889079.

BTW, this is for '69-'72 trucks.
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Old 04-30-2012, 01:38 PM   #12
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Re: need part# for 4 core sb fan shroud
...
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Old 04-30-2012, 02:36 PM   #13
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Re: need part# for 4 core sb fan shroud
Quote:
Originally Posted by GruntMoanCough View Post
Parts book lists fan shroud as:

3901443 - 71-72 C Models w/350 V-8 w/HD Rad
Quote:
Originally Posted by GruntMoanCough View Post
PN for all other 2wd sbc V8's w/o AC and/or HD Rad is listed as #3889079.

BTW, this is for '69-'72 trucks.
thanks, good info!
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Old 04-30-2012, 02:39 PM   #14
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Re: need part# for 4 core sb fan shroud
Where typically is the part number located? Just want to know if mine are OEM.
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Old 04-30-2012, 03:06 PM   #15
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Re: need part# for 4 core sb fan shroud
3901443 looks to be a big block shroud, I am going to double check it against one I have at home, I guess it will also work with a small block
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Old 04-30-2012, 03:28 PM   #16
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Re: need part# for 4 core sb fan shroud
I was going to purchase a repop shroud, but heard of the crappy quality... I talked to Wes at Classic Heartbeat, and he had a used OEM HD shroud in fantastic shape. Fits great.

Gary
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I love using vacuum gauges as part of the carb tuning process. I hook the gauge to the inside of my garbage can and leave it there.
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Remember Murphys 2nd law of mechanical relationships... "OPPOSING COMPONENTS ATTEMPTING TO OCCUPY THE SAME SPACE, AT THE SAME TIME, GENERALLY END UP OCCUPYING ADJOINING SPACE AT THE BOTTOM OF THE OIL PAN"
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Old 04-30-2012, 03:29 PM   #17
BB72CHEVKT
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Re: need part# for 4 core sb fan shroud
Quote:
Originally Posted by GASoline71 View Post
I was going to purchase a repop shroud, but heard of the crappy quality... I talked to Wes at Classic Heartbeat, and he had a used OEM HD shroud in fantastic shape. Fits great.

Gary
I hit him up before posting but he did not have one. Do you have the part number by chance?
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Last edited by BB72CHEVKT; 04-30-2012 at 03:29 PM. Reason: add info
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Old 04-30-2012, 03:31 PM   #18
GASoline71
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Re: need part# for 4 core sb fan shroud
Let me go see if I can spy it on the shroud... BRB...

Gary
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My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread.

The Rebuild of Creeping Death after the wreck

Quote:
Originally Posted by LONGHAIR View Post
I would never rebuild a 305.
Quote:
Originally Posted by prostreetC-10 View Post
I love using vacuum gauges as part of the carb tuning process. I hook the gauge to the inside of my garbage can and leave it there.
Quote:
Originally Posted by Marv D View Post
Remember Murphys 2nd law of mechanical relationships... "OPPOSING COMPONENTS ATTEMPTING TO OCCUPY THE SAME SPACE, AT THE SAME TIME, GENERALLY END UP OCCUPYING ADJOINING SPACE AT THE BOTTOM OF THE OIL PAN"
Quote:
Originally Posted by cableguy0 View Post
Its cheaper to listen to advice given when you ask for help than it is to ignore everyone and wait for carnage.
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Old 04-30-2012, 03:37 PM   #19
GASoline71
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Re: need part# for 4 core sb fan shroud
Without unbolting it... there's no visible numbers I can see.

Gary
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'cuz chicks dig scars...

My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread.

The Rebuild of Creeping Death after the wreck

Quote:
Originally Posted by LONGHAIR View Post
I would never rebuild a 305.
Quote:
Originally Posted by prostreetC-10 View Post
I love using vacuum gauges as part of the carb tuning process. I hook the gauge to the inside of my garbage can and leave it there.
Quote:
Originally Posted by Marv D View Post
Remember Murphys 2nd law of mechanical relationships... "OPPOSING COMPONENTS ATTEMPTING TO OCCUPY THE SAME SPACE, AT THE SAME TIME, GENERALLY END UP OCCUPYING ADJOINING SPACE AT THE BOTTOM OF THE OIL PAN"
Quote:
Originally Posted by cableguy0 View Post
Its cheaper to listen to advice given when you ask for help than it is to ignore everyone and wait for carnage.
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Old 04-30-2012, 03:38 PM   #20
BB72CHEVKT
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Re: need part# for 4 core sb fan shroud
Quote:
Originally Posted by GASoline71 View Post
Without unbolting it... there's no visible numbers I can see.

Gary
Thanks, I think it is on the inside where the fan goes so it may be impossible to see when bolted to the truck.
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Old 04-30-2012, 04:18 PM   #21
GruntMoanCough
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Re: need part# for 4 core sb fan shroud
Big block shroud should be 3924932.
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