Aluminum fan shroud - Chevelle Tech
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post #1 of 14 (permalink) Old Jun 13th, 19, 9:56 PM Thread Starter
 
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Aluminum fan shroud

My fan shroud is all cracked and broken.
I want a nice aluminum shroud but I haven't really found one. My car isn't original so I feel no need to buy a factory replacement.
Anyone have something they like that they used?
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post #2 of 14 (permalink) Old Jun 14th, 19, 8:23 AM
 
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Re: Aluminum fan shroud

We make one if you buy our combo kit

Ask around locally. Someone local should be able to bend some metal and make one for you though.
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post #3 of 14 (permalink) Old Jun 14th, 19, 12:09 PM
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Re: Aluminum fan shroud

Summit has adjustable alu shrouds.
https://www.summitracing.com/search/...an-shroud-kits

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489 BB with parts from Lewis racing
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Th 400 Edge 9.5" converter
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post #4 of 14 (permalink) Old Jun 14th, 19, 1:21 PM
 
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Re: Aluminum fan shroud

Aluminum shrouds are normally made for electric fans. They are very low profile and not suited well for mechanical fans. You could fabricate one by going to a local heating and AC place. However, by the time you are done, you probably will spend more money than a plastic reproduction costs.
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post #5 of 14 (permalink) Old Jun 14th, 19, 2:30 PM
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Re: Aluminum fan shroud

Quote:
Originally Posted by Ccass View Post
Aluminum shrouds are normally made for electric fans. They are very low profile and not suited well for mechanical fans. You could fabricate one by going to a local heating and AC place. However, by the time you are done, you probably will spend more money than a plastic reproduction costs.
The summit shrouds are for mech fans.
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Chevelle Malibu ss 64
489 BB with parts from Lewis racing
Alumitech radiator with dual spals
Th 400 Edge 9.5" converter
57 3/4” wide 12 bolt: Eaton posi, Us gear 3.31, Toms KA 33 splines axles
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post #6 of 14 (permalink) Old Jun 14th, 19, 3:25 PM
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Re: Aluminum fan shroud

Not a fan of Metal Shrouds as they tend to absorb and maintain Heat in a place you want to move Heat from

A good Repo Plastic/Fibre Shroud that covers/fits the whole of the Rad's Core and is Cone shaped is what you want
plus the Mech Fan Blades should be 1/2 In and 1/2 Out of the Shrouds Hole Opening
if you have a Clutch on it, it should be about a 1" to 1.5" from the Rad Core so it senses it's Temp

67 Chevelle Malibu SS Cdn
Born 283 / PG / A51
468/TH400 2,500 stall/ S60 3.70 Gs
Prev Best on M/T ET S/S #3454 street Tires/Dress 2018/05/20
60' = 1.664
1/8 = 7.532 et / 91 mph
1/4 = 11.814 et / 115 mph
NEW Best with 3,500+ Stall TC 2019/06/23
60' = 1.561
1/8 = 7.411 et / 90.18 mph
1/4 = ??.??? et / ??? mph


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post #7 of 14 (permalink) Old Jun 14th, 19, 3:43 PM Thread Starter
 
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Re: Aluminum fan shroud

Quote:
Originally Posted by Kirk's67SS View Post
Not a fan of Metal Shrouds as they tend to absorb and maintain Heat in a place you want to move Heat from

A good Repo Plastic/Fibre Shroud that covers/fits the whole of the Rad's Core and is Cone shaped is what you want
plus the Mech Fan Blades should be 1/2 In and 1/2 Out of the Shrouds Hole Opening
if you have a Clutch on it, it should be about a 1" to 1.5" from the Rad Core so it senses it's Temp
Damn it, I hadn't really thought of the heat sink affect. I guess I'll just buy a replacement black plastic one.
Where's the grumpy face smiley?
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post #8 of 14 (permalink) Old Jun 14th, 19, 4:11 PM
 
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Re: Aluminum fan shroud

Quote:
Originally Posted by Malibu ss 64 View Post
The summit shrouds are for mech fans.
You know? I rushed and never even clicked on the link. Now that I look, those are not bad.

The one thing I'd be cautious about is to make sure it fills the rad width and height wise. Otherwise for an extra $30, you can have a direct fit OEM style shroud.

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post #9 of 14 (permalink) Old Jun 14th, 19, 7:10 PM
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Re: Aluminum fan shroud

Quote:
Originally Posted by Kirk's67SS View Post
Not a fan of Metal Shrouds as they tend to absorb and maintain Heat in a place you want to move Heat from

A good Repo Plastic/Fibre Shroud that covers/fits the whole of the Rad's Core and is Cone shaped is what you want
plus the Mech Fan Blades should be 1/2 In and 1/2 Out of the Shrouds Hole Opening
if you have a Clutch on it, it should be about a 1" to 1.5" from the Rad Core so it senses it's Temp
The whole inside of the engine compartment is mostly metal including the fan blades right behind the clutch, do you honestly think this is a problem.

Quote:
Originally Posted by Binford View Post
Damn it, I hadn't really thought of the heat sink affect. I guess I'll just buy a replacement black plastic one.
Where's the grumpy face smiley?
That is a pretty decent looking shroud and cheap enough to try.

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post #10 of 14 (permalink) Old Jun 14th, 19, 8:25 PM Thread Starter
 
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Re: Aluminum fan shroud

https://www.jegs.com/i/Allstar+Perfo...EaAnBeEALw_wcB


I was actually looking at this one. I looked at the summit ones too.
I wouldn't need to mess around with a HVAC shop or any of that junk. I have more then enough tools and knowledge/skill to build my own. It's a simply a matter of time. I have no time and I am currently up to my knees in work on this car and I need a quick fix. I don't like the plastic ones and I was hoping that you hardcore chevelle guys had some specialty source that didn't yield on my quick Google search.
While the heat sink might not be a huge deal I happen to like that kind of out of the box thinking about things. When you look at the history of shrouds manufacturers started using plastic pretty quickly when alot of other parts where still being made from steel. (In the 50-60s) something to think about.
Anyway since there really wasn't a honey hole reply. And I'm a slammed for time. I'm trying to drive this car yet this summer, I'll just buy a replacement for 80 bucks and call it good.
Maybe I can mess around with building my own down the road, if I'm still interested in it.
Thanks for the replys.
Binford.
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post #11 of 14 (permalink) Old Jun 15th, 19, 10:17 AM
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Re: Aluminum fan shroud

I tried one of the ones from summit, didn’t work out all that well. They are a flat box with no contour. Some welding required to make it function properly.

Air doesn’t want to flow through it. What you end up with is air being pulled through just where the fan is, any other area is like a dead zone. I like the allstar design, looks like it would work better.
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post #12 of 14 (permalink) Old Jun 15th, 19, 12:59 PM
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Re: Aluminum fan shroud

Quote:
Originally Posted by oldcutlass View Post
The whole inside of the engine compartment is mostly metal including the fan blades right behind the clutch, do you honestly think this is a problem.

That is a pretty decent looking shroud and cheap enough to try.
YES
Have you ever put your hand on or touched a Metal Shroud VS a Plastic/Fibre Shroud

Why are all the New cars/Trucks Shrouds Plastic/Fibre
and it is not because they are lighter than thin Alum Metal

Cheaper is not always better and if it does not work
then you end up having to buy something you should have bought in the First place

When the Metal Fan Blade is pulling the Air over it's self it does not get Hot
unlike the Metal Shroud

67 Chevelle Malibu SS Cdn
Born 283 / PG / A51
468/TH400 2,500 stall/ S60 3.70 Gs
Prev Best on M/T ET S/S #3454 street Tires/Dress 2018/05/20
60' = 1.664
1/8 = 7.532 et / 91 mph
1/4 = 11.814 et / 115 mph
NEW Best with 3,500+ Stall TC 2019/06/23
60' = 1.561
1/8 = 7.411 et / 90.18 mph
1/4 = ??.??? et / ??? mph


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post #13 of 14 (permalink) Old Jun 15th, 19, 1:57 PM
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Re: Aluminum fan shroud

Depending on the year of your Chevelle and the size of the Rad
the Plastic/Fibre Shrouds from GrdUp are in the same Ball Park for cost as the Metal Allstar one

https://www.ss396.com/mm5/merchant.m...ry=Fan+Shrouds

Just make sure you buy the Shroud that covers the Whole Rad core
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67 Chevelle Malibu SS Cdn
Born 283 / PG / A51
468/TH400 2,500 stall/ S60 3.70 Gs
Prev Best on M/T ET S/S #3454 street Tires/Dress 2018/05/20
60' = 1.664
1/8 = 7.532 et / 91 mph
1/4 = 11.814 et / 115 mph
NEW Best with 3,500+ Stall TC 2019/06/23
60' = 1.561
1/8 = 7.411 et / 90.18 mph
1/4 = ??.??? et / ??? mph


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post #14 of 14 (permalink) Old Jun 16th, 19, 9:19 PM Thread Starter
 
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Re: Aluminum fan shroud

Quote:
Originally Posted by Kirk's67SS View Post
Depending on the year of your Chevelle and the size of the Rad
the Plastic/Fibre Shrouds from GrdUp are in the same Ball Park for cost as the Metal Allstar one

https://www.ss396.com/mm5/merchant.m...ry=Fan+Shrouds

Just make sure you buy the Shroud that covers the Whole Rad core
67. And summit carries one. And only 100 bucks for free shipping.
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