sam 15
Contributor
Posts: 254
Loc: Palm Desert Cali
Reg: 10-24-09
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08-11-12 08:21 AM - Post#2258096
I decided to ditch the electric fan set up I have. I've taken the the loud fan noise and marginal cooling (when it's hot outside) long enough. My 62 wagon currently has a Champion direct replacement radiator. Anyone make this change? What schroud and fan w/fan clutch combo work to replace what I have....pics are always nice. Thanks
| '62 Bel Air 9 Passenger Wagon-Work in Progress |
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bobb
Super Senior Member
Posts: 4628
Loc: paradise
Reg: 09-05-03
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08-11-12 11:18 AM - Post#2258134
In response to sam 15
i would think a truck setup would work well. there are different ratings on the clutch too.
| 70 L camino 350 all forged,174 baby blower, g-force 5 spd, road rage suspension. Pray first before all else fails. |
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 weldvair
Silver Supporting Member
Posts: 135
Age: 74
Loc: st cloud fl
Reg: 09-14-11
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08-11-12 01:38 PM - Post#2258183
In response to bobb
I am using a 7 blade fan & clutch from a Chevy van. Really pulls the air.
(original modified schroud)
Don
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 62chevy427
"7th Year" Silver Supporting Member
Posts: 1516
Loc: laurens sc
Reg: 04-13-06
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08-11-12 05:05 PM - Post#2258237
In response to sam 15
i,m using a thermo clutch and a 7 blade fan from a pontiac on my 62.also have a modified factory shroud. had to modify it due to the 427 engine.make sure the fan is 1/2 in and 1/2 out of the shroud.mine ran hot until i modified the shroud to get the fan in the proper position.
56 bel air ((since 2002)
62 impala ss (since 1965)
65 el camino (since 1969)
66 nova (since 1987)
67 malibu convertible (since 1981)
72 el camino ss454 (since 1985)
83 gmc 4wd (since 1991)
95 impala (new)
11 malibu (new) |
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sam 15
Contributor
Posts: 254
Loc: Palm Desert Cali
Reg: 10-24-09
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08-11-12 06:58 PM - Post#2258278
In response to 62chevy427
Thanks for the replys fella's. The reason I went the the electric fans was because I was told by several people that the gap at the front of the factory schroud was allowing too much air to escape w/o getting pulled by the fan, decreasing the efficiency. My wagon was a factory 283 (now 350 w/700r4 trans) with the big steel barrel style schroud. The fan that was on there when I got it was a stock chevy 4 blade. I was thinking about trying to find/fit a newer style plastic schroud, but if I can make the originial schroud work to keep her cool that will work for me. Any chance of getting some pics of your mods Don and 62Chevy427.
Thanks
Rick
| '62 Bel Air 9 Passenger Wagon-Work in Progress |
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pvs409
Gold Supporting Member
Posts: 412
Loc: Sergeant Bluff, Iowa
Reg: 01-10-05
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08-11-12 09:17 PM - Post#2258314
In response to sam 15
I suggest you look at the last two posts on this link.
http://www.348-409.com/forum/index.php?threads/can...
I am installing this fan on my 62 SS 409 with a 2" spacer and using my original 409 fan shroud.
Paul
57 Belair HT 283/270hp 4 spd
62 Impala 327/300 4 spd
62 Impala SS CV 327/300 700r4
62 Impala SS 409/482 stroker 4 spd
62 Impala SS 409 - 5 speed Convertible under frame off restoration
My web site:
http://paulstensland.com/ |
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DonSSDD
Silver Supporting Member
Posts: 4674
Loc: Nova Scotia, Canada
Reg: 08-21-01
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08-12-12 04:37 AM - Post#2258351
In response to pvs409
Did you have an overheating problem? You could use the stock clutch fan and blade for the 327, it worked with the stock SB fan shroud.
Don
59 El Camino, 62 Bel Air SC, 62 Bel Air SC(sold in Finland is 2011), 63 SWC Vette (sold)
Member #2194 |
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 dcairns
"4th Year" Silver Supporting Member
Posts: 1553
Loc: Orange CA
Reg: 11-07-03
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08-12-12 07:52 AM - Post#2258394
In response to DonSSDD
This is from my 64 shop manual, but I am sure the same stuff can be used on your car.
Notice the 5 blade clutch fan used on the 327 and 409 in the picture (also used on the 283 with A/C). The 409 had a bigger radiator, which can be used with the small block shroud (it makes a better seal against the radiator). In fact the combo of the 409 radiator and small block shroud was used on the 327/300hp engine with A/C. I have this combo on my 327 (which has been bored and stroked to 383) and it is doing a good job cooling, even with the A/C on.
So it seems to me that you should be able get good cooling for your 350 using stock parts that are tried and true.
- Dave
1964 Impala 4-door sedan
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Tri5man
Frequent Contributor
Posts: 1538
Loc: Inlet Beach, FL
Reg: 06-26-07
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08-12-12 08:19 AM - Post#2258404
In response to dcairns
My 62 Chevy wagon has a late model 350 and an engine driven fan, original radiator and metal shroud. There are no cooling problems what so ever.
62 Impala wagon, 56 Bel Air 2 door post
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sam 15
Contributor
Posts: 254
Loc: Palm Desert Cali
Reg: 10-24-09
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08-12-12 09:21 AM - Post#2258420
In response to dcairns
Don, The only heating problems are when it very hot here in Palm Desert...lately temps are 110-115 and sometime a bit higher. I removed the mechanical water temp gauge and hooked up the stock dash gauge after I installed the Vintage air system. Chcked both a thermal temp gun both were pretty acurate with the stock gauge at around 220 when the neddle gets to the middle, which is where the summer time driving seems to be or a little past middle. Being extremly hot lately, the needle goes to 3/4, thats when I will stop to let her cool down. A friend of mine told me that the problem is that with the AC condenser restricting some air flow the electric fans are not pulling enough air though to keep the engine cool at the higher temps. It currently has 2 Spal 12" fans at 1400 cfm =ing 2800 cfm. He also said, by looking at the design of the back of the fans, the cage webing in back is probably restricking 25-30% of air flow. He suggested a seven blade fan and a thermal fan clutch.
Dave, Looking at the Hayden web site there are 3 thermal clutchs, std, hd, and severe duty. It doesn't list the # of blades on the fan, but I'm leaning torward the 7 blade with a HD fan clutch for the extra cooling for my AC with the desert temps...any input on the 7 balde and HD clutch?
| '62 Bel Air 9 Passenger Wagon-Work in Progress |
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55 Shaker
Member
Posts: 1051
Age: 63
Loc: north central IL.
Reg: 03-13-06
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08-12-12 09:21 AM - Post#2258421
In response to sam 15
This is what I use mounted close to the stock radiator with no shroud in my 55 Chevy with a 485HP. 383. These move alot of air, and are not very expensive.
http://www.summitracing.com/parts/FLX-418/
| The older I get, the more dangerous, I am !!!! |
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Tri5man
Frequent Contributor
Posts: 1538
Loc: Inlet Beach, FL
Reg: 06-26-07
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08-12-12 11:08 AM - Post#2258450
In response to 55 Shaker
Forgot to mention my 62 Impala wagon has no clutch on the fan and has original A/C. No overheating in triple digits cruising the Fairgrounds during the NSRA Nats with A/C on. I also had the dual Spal fan set up on my 46 Ford convertible with Vintage Air. You could not overheat that car if you tried.
62 Impala wagon, 56 Bel Air 2 door post
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dcairns
"4th Year" Silver Supporting Member
Posts: 1553
Loc: Orange CA
Reg: 11-07-03
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08-12-12 01:09 PM - Post#2258495
In response to sam 15
Dave, Looking at the Hayden web site there are 3 thermal clutchs, std, hd, and severe duty. It doesn't list the # of blades on the fan, but I'm leaning torward the 7 blade with a HD fan clutch for the extra cooling for my AC with the desert temps...any input on the 7 balde and HD clutch?
When I went shopping, I could only find a standard duty clutch. But I was also interested in it looking like the original, so I could have disregarded leads that might have lead to a heavy duty clutch, so look around, you might find something I missed.
Don't over do it on the fan blade, there can be a problem where the fan blades obstruct the air (clutch disengaged on the highway). It is one of the reasons the 5 blade has that odd arrangement of blades. So I would suggest going with a 5 or 6 blade. the rear part of the fan blades should hang outside the shroud, just like the stock setup, this is supposed to be most efficient.
Get a shroud, whatever you do, they do make a big difference. If you use the stock one, and don't mind modified looks, you could add some weather stripping to try and "seal" the shroud to the radiator. I also recall somebody making some metal plates that go between the grill and radiator support to prevent air from bypassing the radiator.
- Dave
1964 Impala 4-door sedan
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|OOO ___________ OOO|
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mac1
Senior Member
Posts: 1452
Loc: Long Beach, Ca.
Reg: 08-26-02
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08-12-12 03:10 PM - Post#2258535
In response to sam 15
This is what I have to cool my big block.
First is an 18" flex fan, ( direct drive, no clutch)
Second is an electric fan tucked away inside the schroud.
Third is this core support filler panel that prevents hot engine air from being pulled over the top of the core support. This setup will move allot of air over the engine and lower engine temps.
I know allot of guys don't like flex fans. For each his own. This one seems to be built very well though. The staggered blades are designed to keep the noise level down. Take it easy on me flex fan haters. Just my 2 cents.
http://www.summitracing.com/parts/FLX-1818
/?rtype=10
http://shop.perma-cool.com/HD-Electric-Fan-16x3- 3-...
http://www.ebay.com/itm/62-Impala-Radiato r-Filler-...
[image] +e(hLrw~~60_12.JPG) [/image]
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 turbo38s10
"3rd Year" Gold Supporting Member
Posts: 678
Loc: Agawam,MA
Reg: 09-17-09
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08-12-12 07:43 PM - Post#2258634
In response to mac1
Before you do anything else just put those filler panels in. They are not expensive and force the air to go thru the radiator. I ueed on my 348 overheating in traffic and now I can sit htere with no problems. I also took the clutch fan out and put in the show cars eliminator for it. No more problems.
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sam 15
Contributor
Posts: 254
Loc: Palm Desert Cali
Reg: 10-24-09
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08-12-12 08:13 PM - Post#2258645
In response to turbo38s10
Thanks for all the replys. I'll keep you all posted on the outcome. I do have the filler panels. I've had them for a while...seem to help. With all the suggestions, I'm sure I'll be able to get the wagon to run cooler in this hot weather in the desert.
| '62 Bel Air 9 Passenger Wagon-Work in Progress |
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dcairns
"4th Year" Silver Supporting Member
Posts: 1553
Loc: Orange CA
Reg: 11-07-03
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08-13-12 05:54 AM - Post#2258700
In response to sam 15
The downsides of the fan clutch eliminator is the greatly increased loss of power, especially at high RPMs, and lots more noise, especially at moderate to high RPMs. But if it solves your cooling problem and you don't mind the downsides, it is a good solution. 
- Dave
1964 Impala 4-door sedan
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/ --------------- \
_/ /___________\ \_
/_________|_________\
|OOO ___________ OOO|
\______|====|______/
|_|------------------|_|
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turbo38s10
"3rd Year" Gold Supporting Member
Posts: 678
Loc: Agawam,MA
Reg: 09-17-09
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08-13-12 10:59 AM - Post#2258801
In response to dcairns
I never noticed any power loss and I run glass packs so I don't hear any fan noise anyway. Personaaly the only thing I noticed was a cooler running engine, but that's just my opinion.
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1963SBHD
"3rd Year" Gold Supporting Member
Posts: 144
Loc: south carolina
Reg: 09-01-11
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08-13-12 12:28 PM - Post#2258831
In response to turbo38s10
I chose to eliminate them both and went with an electric water pump from Summit, Aluminum radiator, twin fans with shroud and front panel filler. Also removed water based coolant, it is more expensive,but since I was changing the whole system went for it. To date no issues at all.(upgraded the alternator,battery and wiring as well). Temp is 160-180 on any day, no parasitic loss, and it IS QUIET so I can hear the MOTOR! 
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models916
Frequent Contributor
Posts: 1941
Age: 62
Loc: Addison, IL
Reg: 05-28-10
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08-14-12 07:02 AM - Post#2259094
In response to 1963SBHD
As speed increases, the air is forced through the radiator and less load is placed on the fan. Only a slight loss of power under acceleration. At cruising speed you should notice nothing.
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62chevy427
"7th Year" Silver Supporting Member
Posts: 1516
Loc: laurens sc
Reg: 04-13-06
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08-14-12 09:56 AM - Post#2259145
In response to sam 15
here is a pic. thought i had more. the modifications basically consist of cutting the shroud to make it shorter and to clear the ps pump.in the pic you can see where i cut the shroud and just above the ps pump belt you can see one of the fan blades. it is half in and half out.
i cut it with a jigsaw and ground it to make it even. turned out pretty good. i usually try to use factory stuff as much as possible and try to make it look original even if it is not.
56 bel air ((since 2002)
62 impala ss (since 1965)
65 el camino (since 1969)
66 nova (since 1987)
67 malibu convertible (since 1981)
72 el camino ss454 (since 1985)
83 gmc 4wd (since 1991)
95 impala (new)
11 malibu (new) |
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sam 15
Contributor
Posts: 254
Loc: Palm Desert Cali
Reg: 10-24-09
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09-06-12 06:21 AM - Post#2267020
In response to sam 15
**UPDATE** I finally found the time to put the clutch fan and shroud on. I still have a few things I want to do to it to clean up the install a bit, but for now enerything fits and works. I ordered a shroud from a 66-67 chevelle sbc because the size and bolt pattern descripition looked close. I had to modify the shroud a bit to make it work...a little triming off the top flange and drill some new bolt holes...pretty simple being plastic. I also ordered a hayden HD thermo clutch fan and a 6 blade fan. Overall I am happy with the results. The setup moves alot of air. It appears I have reduced the water temp by at least 10*. On one of the hottest days (107ish) temp fluctuated about 210*-215* with the air on...still hotter that I would like. Yesterday the weather a little cooler, temp around 205*. I would really like to get it down to 200* or below, but its below boiling so it might be the best I'll get here in the summer months of the desert. Here's some pics
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| '62 Bel Air 9 Passenger Wagon-Work in Progress |
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models916
Frequent Contributor
Posts: 1941
Age: 62
Loc: Addison, IL
Reg: 05-28-10
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09-06-12 07:41 AM - Post#2267044
In response to sam 15
Is your corrigated hose smooth on the inside? If not it is causing some minor flow restriction. Some are smooth on the inside. Check the lower hose for a spring inside. Sometimes under high flow on the highway the lower hose with collapse. Inserting a spring will stop that and restore full flow to the pump.
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sam 15
Contributor
Posts: 254
Loc: Palm Desert Cali
Reg: 10-24-09
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09-06-12 05:45 PM - Post#2267203
In response to models916
Is your corrigated hose smooth on the inside? If not it is causing some minor flow restriction. Some are smooth on the inside. Check the lower hose for a spring inside. Sometimes under high flow on the highway the lower hose with collapse. Inserting a spring will stop that and restore full flow to the pump.
I'll have to check for a smooth upper hose. I took the spring from the lower hose from the old because the new did not have one. Thanks
| '62 Bel Air 9 Passenger Wagon-Work in Progress |
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frankthetank
Contributor
Posts: 680
Loc: Lodi California
Reg: 02-22-11
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09-07-12 12:38 PM - Post#2267416
In response to sam 15
Those radiator filler panels are nice but at $99 a little pricey for me. Thinking bout maybe making some. Heres a link to some I found that seem to be the cheapest in price.
http://www.mattsclassicbowties.com/contents/en-us/...
1963 Chevrolet impala sport coupe
2006 Chevrolet silverado crew cab 2wd |
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