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#1
07-15-2018, 03:18 PM
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70 Fan Shroud
I have the original fan shroud from my TA (479086).
I spent a couple hours scrubbing it up and it looks pretty good. I need to repair the lower mounting tabs with my plastic welder. Does anyone know the type of plastic used on the 479086 fan shroud? Also can some one post a pic of an original in broken lower tab from a 479086? Here is one on mine: And a pic of one from an NOS GM shroud I also have: My question is: on the 479086, is the lower tab hole circular or U shaped? The diameter of the hole on my NOS shroud seems to be smaller than the original shroud. I can confirm this with a pic. Thanks in advance... Sent from my iPhone using Tapatalk
__________________
...Steve T. "Resurrection of a 1970 Trans Am" Blog www.455hota.wordpress.com ------------------------------------- 1966 GTO 4 speed Hardtop Alabama car (Marina Turquoise w turquoise interior) 1970 TA 4 speed Canadian car (Lucerne Blue w bright blue interior) |
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#2
07-15-2018, 03:52 PM
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Steve,
The original shroud off my low-mileage 71 trans am is part number 478114, and looks like the picture you posted of the NOS shroud (closed hole). |
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#3
07-15-2018, 05:15 PM
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Chris do you have pics of your 478114 shroud? I did a quick search of 479086, and it shows to be a 1973 Firebird shroud?
I wanted to see what if any are the physical differences. Thanks. Sent from my iPhone using Tapatalk
__________________
...Steve T. "Resurrection of a 1970 Trans Am" Blog www.455hota.wordpress.com ------------------------------------- 1966 GTO 4 speed Hardtop Alabama car (Marina Turquoise w turquoise interior) 1970 TA 4 speed Canadian car (Lucerne Blue w bright blue interior) |
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#4
07-15-2018, 06:41 PM
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Here are some pictures of a 479086 and a 478114 sitting one on top of the other for comparison. I took these a few years back when I was pulling parts off some cars stored at a friend's place. I bought the 478114 shown in the pictures, (which I removed from a 70 Firebird Esprite with a/c). I didn't know what the 086 was off of at the time since it was just sitting inside one of the parts cars.
Quote:
Last edited by eaglesan13; 07-15-2018 at 06:48 PM. |
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#5
07-15-2018, 06:42 PM
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One more picture...
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#6
07-15-2018, 07:40 PM
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Thanks Chris for the comparison pics.
Looks like the newer shroud was made thinner in areas. Maybe to save some manufacturing costs... I can only imagine how hard it will be to find the right one for a 70 or 71. I will end up using my 73 shroud. BTW do you know the type of plastic these are made from?
__________________
...Steve T. "Resurrection of a 1970 Trans Am" Blog www.455hota.wordpress.com ------------------------------------- 1966 GTO 4 speed Hardtop Alabama car (Marina Turquoise w turquoise interior) 1970 TA 4 speed Canadian car (Lucerne Blue w bright blue interior) |
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#7
07-15-2018, 09:28 PM
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Steve,
I don't think it was to save any money on manufacturing costs, I think there were different shrouds for different applications (three core versus four core radiators). You might want to read through this old thread, it might provide some info on the difference between the two shrouds: http://forums.maxperformanceinc.com/...ghlight=478114 I do not know what type of plastic the shrouds are made from. Chris Quote:
Last edited by eaglesan13; 07-15-2018 at 09:48 PM. |
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#8
07-16-2018, 01:00 AM
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The shrouds are made of Polypropylene.
__________________
1968 Firebird 400HO convertible 1971 Trans Am 4-speed, white/blue |
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#9
07-16-2018, 09:09 AM
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Thanks 68 Bird for that info!
Yes Chris that is a very informative post. I did not think of a difference for 3 core and 4 core rads. When I get home next weekend, I guess I better do a test fit in my core support with my rad and shroud to see if I am okay or not... Again info from PY saves the day!! Sent from my iPhone using Tapatalk
__________________
...Steve T. "Resurrection of a 1970 Trans Am" Blog www.455hota.wordpress.com ------------------------------------- 1966 GTO 4 speed Hardtop Alabama car (Marina Turquoise w turquoise interior) 1970 TA 4 speed Canadian car (Lucerne Blue w bright blue interior) |
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