| Re: [GMCnet] Exhaust donut needed [message #355221] |
Fri, 29 May 2020 21:48  |
Emery Stora
Messages: 959
Registered: January 2011
Karma: 4
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Senior Member |
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Bring it in with you. I found them at NAPA.
Emery Stora
> On May 29, 2020, at 8:38 PM, Keith V via Gmclist wrote:
>
> I'm having an exhaust leak in the donut between the header and the exhaust pipe. Its stinking up my coach.
>
> I'm on the road in south dakota.
> I tried O Rileys, but they can only look up by vehicle.
>
> Anyone have an idea where to get one on the fly?
>
> Thanks!
> Keith vasilakes
> 1975 Royale
> I90 sioux falls South Dakota
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| Re: [GMCnet] Exhaust donut needed [message #355226 is a reply to message #355221] |
Fri, 29 May 2020 22:40  |
powwerjon
Messages: 849
Registered: March 2013
Karma: -2
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Senior Member |
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The exhaust donut that you want for headers is the FelPro 60584, Napa uses the same number as well as AutoZone too and that is the one that I use. You want the one that is for the Chevy truck GM V8 350 thru 454, 2 1/2” steel sleeve. Expect to pay between $9 & $12+. If they are the lower priced stuff at $4 to $6 they are probably the inferior quality stuff and you will be replacing it again in a couple of years. Important to get the best as of the high heat at that joint. Most Muffler shops also stock the good donut too. As had be said take your old one for size comparison. Be sure to clean the header pipe bell mouth to the muffler mounting flange with some scotch bright to remove any carbon buildup. If you use the bolt and spring arrangement to hold the header and downpipe together, the Dorman Help line at most autoparts stores is GM1900-71 part number and again take your old parts for comparison.
J.R. Wright
GMC Great Laker MHC
GMCGL Tech Editor
GMC Eastern States Charter Member
GMCMI
78 GMC Buskirk 29.5’ Stretch
75 GMC Avion (Under Reconstruction)
Michigan
> On May 29, 2020, at 10:48 PM, Emery Stora via Gmclist wrote:
>
> Bring it in with you. I found them at NAPA.
>
> Emery Stora
>
>> On May 29, 2020, at 8:38 PM, Keith V via Gmclist wrote:
>>
>> I'm having an exhaust leak in the donut between the header and the exhaust pipe. Its stinking up my coach.
>>
>> I'm on the road in south dakota.
>> I tried O Rileys, but they can only look up by vehicle.
>>
>> Anyone have an idea where to get one on the fly?
>>
>> Thanks!
>> Keith vasilakes
>> 1975 Royale
>> I90 sioux falls South Dakota
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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| Re: [GMCnet] Exhaust donut needed [message #355232 is a reply to message #355226] |
Sat, 30 May 2020 09:39 |
Keith V
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
Karma: 0
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Senior Member |
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Wow what an awesome response! I cant bri g the old one in because i dont have towed, and im not driving it without a gasket!
Ill call around and see if i can locate one?
GMC guys are the best!
Keith
________________________________
From: Gmclist on behalf of John Wright via Gmclist
Sent: Friday, May 29, 2020 10:40:30 PM
To: gmclist@list.gmcnet.org
Cc: John Wright
Subject: Re: [GMCnet] Exhaust donut needed
The exhaust donut that you want for headers is the FelPro 60584, Napa uses the same number as well as AutoZone too and that is the one that I use. You want the one that is for the Chevy truck GM V8 350 thru 454, 2 1/2” steel sleeve. Expect to pay between $9 & $12+. If they are the lower priced stuff at $4 to $6 they are probably the inferior quality stuff and you will be replacing it again in a couple of years. Important to get the best as of the high heat at that joint. Most Muffler shops also stock the good donut too. As had be said take your old one for size comparison. Be sure to clean the header pipe bell mouth to the muffler mounting flange with some scotch bright to remove any carbon buildup. If you use the bolt and spring arrangement to hold the header and downpipe together, the Dorman Help line at most autoparts stores is GM1900-71 part number and again take your old parts for comparison.
J.R. Wright
GMC Great Laker MHC
GMCGL Tech Editor
GMC Eastern States Charter Member
GMCMI
78 GMC Buskirk 29.5’ Stretch
75 GMC Avion (Under Reconstruction)
Michigan
> On May 29, 2020, at 10:48 PM, Emery Stora via Gmclist wrote:
>
> Bring it in with you. I found them at NAPA.
>
> Emery Stora
>
>> On May 29, 2020, at 8:38 PM, Keith V via Gmclist wrote:
>>
>> I'm having an exhaust leak in the donut between the header and the exhaust pipe. Its stinking up my coach.
>>
>> I'm on the road in south dakota.
>> I tried O Rileys, but they can only look up by vehicle.
>>
>> Anyone have an idea where to get one on the fly?
>>
>> Thanks!
>> Keith vasilakes
>> 1975 Royale
>> I90 sioux falls South Dakota
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
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| Re: [GMCnet] Exhaust donut needed [message #355234 is a reply to message #355232] |
Sat, 30 May 2020 10:50 |
Ty Hardiman
Messages: 43
Registered: April 2017
Location: Norman, Oklahoma
Karma: 0
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I use the 60241, which Fel-Pro's website shows for an Oldsmobile 403/455 application. I haven't used a 60258, which crosses with a Chevy 350/454 application. Fel-Pro's website shows a slight size difference between the two. I may grab a 60258 today and see what the difference in fit is, if any.
Norman, OK / August 1977 Kingsley / 403 / 3.55 / 16" / Quadrajet
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| Re: [GMCnet] Exhaust donut needed [message #355255 is a reply to message #355234] |
Sat, 30 May 2020 20:28 |
Keith V
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
Karma: 0
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I got the donut in it fits, not sure if the 241 is better or not, but this one worked.
Its nice not go have exhaust fumes in the coach.
Btw, how we found it was i put my wind wing all the way out, this sucks air out of the coach pulling exhaust fumes in. Hard to believe that can happen at 6p mph, but it was sure repeatable!
________________________________
From: Gmclist on behalf of Ty Hardiman via Gmclist
Sent: Saturday, May 30, 2020 10:50:56 AM
To: gmclist@list.gmcnet.org
Cc: Ty Hardiman
Subject: Re: [GMCnet] Exhaust donut needed
I use the 60241, which Fel-Pro's website shows for an Oldsmobile 403/455 application. I haven't used a 60258, which crosses with a Chevy 350/454
application. Fel-Pro's website shows a slight size difference between the two. I may grab a 60258 today and see what the difference in fit is, if any.
--
Norman, OK / August 1977 Kingsley / 403 / 3.55 / 16" / Quadrajet
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Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
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| Re: [GMCnet] Exhaust donut needed [message #355257 is a reply to message #355221] |
Sat, 30 May 2020 21:09 |
Ty Hardiman
Messages: 43
Registered: April 2017
Location: Norman, Oklahoma
Karma: 0
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Member |
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Furthermore I see that I mis-typed JR‘s recommendation, which he correctly stated was the 60584 for the Chevy 350/454. Guess I should’ve had another cup of coffee before I started posting this morning.
Norman, OK / August 1977 Kingsley / 403 / 3.55 / 16" / Quadrajet
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| Re: [GMCnet] Exhaust donut needed [message #355267 is a reply to message #355257] |
Sun, 31 May 2020 12:10 |
Keith V
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
Karma: 0
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Senior Member |
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More coffee is always the right answer!
________________________________
From: Gmclist on behalf of Ty Hardiman via Gmclist
Sent: Saturday, May 30, 2020 9:09:39 PM
To: gmclist@list.gmcnet.org
Cc: Ty Hardiman
Subject: Re: [GMCnet] Exhaust donut needed
Furthermore I see that I mis-typed JR‘s recommendation, which he correctly stated was the 60584 for the Chevy 350/454. Guess I should’ve had
another cup of coffee before I started posting this morning.
--
Norman, OK / August 1977 Kingsley / 403 / 3.55 / 16" / Quadrajet
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GMCnet mailing list
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http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
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