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Registered
Join Date: Jul 2008
Location: Montclair, NJ
Posts: 178
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Thin flange or thick flange heat exchangers??
Hi,
I need to buy new heat exchangers on a budget. So I am looking for a set of used ones. Not sure what I need. Can anyone let me know? Thin or thick flange? I have an 82SC? I will then post a WTB add in the used parts forum... Thank you! Boris  
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01-24-2012, 01:41 PM
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Diss Member
Join Date: Jul 2002
Location: SC - (Aiken in the 'other' SC)
Posts: 5,022
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Looks like thick flange to me but they are so rust I can't really see the corner of the flanges from the picture.
BTW - You can use thin flange exhaust on a thick flange car with the possible addition of some spacers/washers and cleaning up the threads. So if you see a killer deal don't let that stop you. Be very careful, using heat and penetrating lube, to pull them off. You don't want to snap a stud and mess up your day. Use copper nuts when you put them back on to future proof the install.
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- "Speed kills! How fast do you want to go?" - anon. - "If More is better then Too Much is just right!!!" - Mad Mac Durgeloh -- Wayne - 87 Carrera coupe -> The pooch. |
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01-24-2012, 02:16 PM
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1982 is thick flange. I just removed mine and replaced with stainless steel exchangers. I am selling my old exchangers, if you are interested.
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01-24-2012, 02:46 PM
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Registered
Join Date: May 2004
Location: Lake Cle Elum - Eastern WA.
Posts: 8,417
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I have a set from an '81 I'd sell also.....
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Bob S. 73.5 911T 1969 911T Coo' pay (one owner) 1960 Mercedes 190SL 1962 XKE Roadster (sold) - 13 motorcycles |
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01-24-2012, 03:07 PM
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<insert witty title here>
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Definitely thick. I found out the hard way mounting early thin flange exhaust on an 82 sc engine. I couldn't figure out why the barrel nuts wouldn't tighten without the hex head socket slipping out
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01-24-2012, 03:16 PM
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CDN Redneck
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Did the 84 3.2 Carrera come with thick flange HE's also? I have to pull them off to clean the leaked oil out of them and will have to replace the Barrel nuts and Lock nuts. I will be installing new oil tubes while they are off.
The HE part # is 930-211-029-00 (both sides are the same) Thanks
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84 Carrera Coupe 3.2L Tea Tray Tail Black on Black |
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01-26-2012, 04:57 PM
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Diss Member
Join Date: Jul 2002
Location: SC - (Aiken in the 'other' SC)
Posts: 5,022
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Quote:
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- "Speed kills! How fast do you want to go?" - anon. - "If More is better then Too Much is just right!!!" - Mad Mac Durgeloh -- Wayne - 87 Carrera coupe -> The pooch. |
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01-26-2012, 05:08 PM
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Retired Member
Join Date: Sep 2005
Location: Guelph Ontario
Posts: 2,523
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I have thin flanges on my 3 litre. I've had no issues for 4 years.
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80 911 SC sold 17 Tahoe 07 Z06 Corvette 
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01-26-2012, 05:26 PM
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Registered
Join Date: Aug 2001
Location: Webster, NY, USA
Posts: 244
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our host sells SSI's and in the description for your car it says thick flange.
Last edited by poorshe911; 01-26-2012 at 05:33 PM.. |
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01-26-2012, 05:26 PM
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CDN Redneck
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The 80s Carreras are thick flange. Replace the nuts with copper plated nuts. It should really be a requirement...
Thank You! I am making up a project list and want to get he right ones.
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84 Carrera Coupe 3.2L Tea Tray Tail Black on Black |
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01-26-2012, 05:52 PM
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I just removed my thick flange exchangers last week. They are for sale if you are interested. I changed over to stainless.
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01-26-2012, 08:29 PM
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Banned
Join Date: Aug 2011
Location: The Wet Side
Posts: 5,675
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So, I get that the SS ones are better due to longevity, but are there any other benefits to SS HEs?
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01-27-2012, 05:49 AM
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RETIRED
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Some of the posts are confusing SSIs which are equal length stainless versions of early dual outlet HEs....with Stainless versions of SC wrap around HEs that are single outlet.....just sayin'......
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1983/3.6, backdate to long hood 2012 ML350 3.0 Turbo Diesel |
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01-27-2012, 06:08 AM
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Registered
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Are you still looking for a pair? I have a set available.
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02-02-2012, 04:38 PM
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Registered
Join Date: Jul 2008
Location: Montclair, NJ
Posts: 178
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I got a pair at the local PCA swap. Thanks everybody!
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02-02-2012, 04:45 PM
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grateful user
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you can use the thin flange if you want. Just use spacers or get nuts, or what i did, allen heads. (have to remove studs to use allens)
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fully disassembled, blasted, customized and restored 75 targa with factory hard top, 993 style turbo ft fenders, steel flares, C2 bumpers and rockers, 82 3.0 sc 9.5/1 engine with PMS flywheel, 964 cams, flowed heads, ssi's short geared 915 w/lsd, polybronze, bilstein,working lambda, modified and highly tuned cis, tensioners, pop valve, backdated exhaust and heater, 2300 lbs. no bolt left untouched. 1970 911E. Nice car but needs a re-do. |
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02-02-2012, 06:18 PM
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1972 Porsche 911T 2.4
Da cab
75 Porsche 911
bike
1970 porsche E
