Exhaust donut needed

Keith V

Keith V

Well-known member
Mar 26, 2008
3,569
362
83
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
 
Try Ols Toronado 76 455

On Fri, May 29, 2020 at 7:38 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
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.gmcrvparts.com
1-800-752-7502
 
Bring it in with you. I found them at NAPA.

Emery Stora

>
> 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
 
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

>
> Bring it in with you. I found them at NAPA.
>
> Emery Stora
>

>>
>> 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
 
FelPro 60584
Amazon $7.79
--
1977 Kingsley 455 as stock as it gets except lots of Ragusa parts
 
I took an old one to Advance and they matched it. Been a while, unfortunately don't have the envelope with the part # any more, but it waqs a stock
item.

--johnny
--
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
 
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
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

>
> Bring it in with you. I found them at NAPA.
>
> Emery Stora
>

>>
>> 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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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
 
And now I see you have headers, rather than manifolds. My answer was regarding manifolds.

Safe travels,
Ty
--
Norman, OK / August 1977 Kingsley / 403 / 3.55 / 16" / Quadrajet
 
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
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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That must be the difference
________________________________
From: Gmclist on behalf of Ty Hardiman via Gmclist
Sent: Saturday, May 30, 2020 10:53:17 AM
To: gmclist
Cc: Ty Hardiman
Subject: Re: [GMCnet] Exhaust donut needed

And now I see you have headers, rather than manifolds. My answer was regarding manifolds.

Safe travels,
Ty
--
Norman, OK / August 1977 Kingsley / 403 / 3.55 / 16" / Quadrajet

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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
 
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
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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There is a distinction between Manifold and Headers.
Be specific as it is rude to say one and mean another.
Since I spend about 60% of my time answering tech questions and being 77
I’m not too toleren .😩

On Sun, May 31, 2020 at 10:11 AM Keith V via Gmclist <

> 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
> 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
>
> _______________________________________________
> 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
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.gmcrvparts.com
1-800-752-7502
 
What Jim is saying
Maybe. Is there is not usually a doughtnut with headers. Fairly certain you have headers if I remember??

Might need a closer look. I learned there was no doughnuts for my headers last year. Ended up a cheap
Muffler failed. Had to get under to see when I dived in to make sure bolts holding exhaust to header was tight.

--
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
 
The NEW design does not have donut, but the older headers use the donut.

On Sun, May 31, 2020 at 5:17 PM Jon Roche via Gmclist <

> What Jim is saying
> Maybe. Is there is not usually a doughtnut with headers. Fairly
> certain you have headers if I remember??
>
> Might need a closer look. I learned there was no doughnuts for my headers
> last year. Ended up a cheap
> Muffler failed. Had to get under to see when I dived in to make sure
> bolts holding exhaust to header was tight.
>
>
> --
> Jon Roche
> 75 palm beach
> EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
> St. Cloud, MN
> http://lqqkatjon.blogspot.com/
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.gmcrvparts.com
1-800-752-7502
 
I have old headers, Probably 12- 15 years old, the donut was the solution.
Donuts and coffee mmmmmm
________________________________
From: Gmclist on behalf of Jim Kanomata via Gmclist
Sent: Sunday, May 31, 2020 7:28 PM
To: gmclist
Cc: Jim Kanomata
Subject: Re: [GMCnet] Exhaust donut needed

The NEW design does not have donut, but the older headers use the donut.

On Sun, May 31, 2020 at 5:17 PM Jon Roche via Gmclist <

> What Jim is saying
> Maybe. Is there is not usually a doughtnut with headers. Fairly
> certain you have headers if I remember??
>
> Might need a closer look. I learned there was no doughnuts for my headers
> last year. Ended up a cheap
> Muffler failed. Had to get under to see when I dived in to make sure
> bolts holding exhaust to header was tight.
>
>
> --
> Jon Roche
> 75 palm beach
> EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
> St. Cloud, MN
> http://lqqkatjon.blogspot.com/
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.gmcrvparts.com
1-800-752-7502
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
My Thorley headers have donuts.

Emery Stora

>
> I have old headers, Probably 12- 15 years old, the donut was the solution.
> Donuts and coffee mmmmmm
> ________________________________
> From: Gmclist on behalf of Jim Kanomata via Gmclist
> Sent: Sunday, May 31, 2020 7:28 PM
> To: gmclist
> Cc: Jim Kanomata
> Subject: Re: [GMCnet] Exhaust donut needed
>
> The NEW design does not have donut, but the older headers use the donut.
>
>> On Sun, May 31, 2020 at 5:17 PM Jon Roche via Gmclist <

>>
>> What Jim is saying
>> Maybe. Is there is not usually a doughtnut with headers. Fairly
>> certain you have headers if I remember??
>>
>> Might need a closer look. I learned there was no doughnuts for my headers
>> last year. Ended up a cheap
>> Muffler failed. Had to get under to see when I dived in to make sure
>> bolts holding exhaust to header was tight.
>>
>>
>> --
>> Jon Roche
>> 75 palm beach
>> EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
>> St. Cloud, MN
>> http://lqqkatjon.blogspot.com/
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>
>
> --
> Jim Kanomata
> Applied/GMC, Newark,CA
> jimk
> http://www.gmcrvparts.com
> 1-800-752-7502
> _______________________________________________
> 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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