| Exhaust Manifold [message #133900] |
Sat, 09 July 2011 12:38  |
biggreen
Messages: 347
Registered: June 2011
Location: Northeast Florida
Karma: 1
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Senior Member |
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Which of the stock manifolds is hard to come by, Driver or pass side? Thanks.
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| Re: [GMCnet] Exhaust Manifold [message #133915 is a reply to message #133900] |
Sat, 09 July 2011 13:41  |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Senior Member |
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The passenger side because of the dog leg design caused by the oil
filter location and mounting.
J.R. Wright
GMC GreatLaker
78 Buskirk 30' Stretch
1975 Avion (Under Reconstruction)
Michigan
On Jul 9, 2011, at 1:38 PM, R.D. Hart wrote:
>
>
> Which of the stock manifolds is hard to come by, Driver or pass
> side? Thanks.
> _______________________________________________
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: [GMCnet] Exhaust Manifold [message #133954 is a reply to message #133952] |
Sat, 09 July 2011 18:08 |
hertfordnc
Messages: 1164
Registered: September 2009
Location: East NC
Karma: 0
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| Robert Mueller wrote on Sat, 09 July 2011 18:03 |
J.R.,
IIRC someone mentioned that the exhaust manifolds off a Toronado are not the
same also is that correct?
|
That is correct.
Dave & Ellen Silva
Hertford, NC
76 Birchaven, 1-ton and other stuff
Currently planning the Great american Road Trip Summer 2021
It's gonna take a lot of Adderall to get this thing right.
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| Re: [GMCnet] Exhaust Manifold [message #134028 is a reply to message #133952] |
Sun, 10 July 2011 11:08 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Senior Member |
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Rob,
I am going to stand somewhat corrected here! I just when out and
looked at the Old Tornado Eng that I have in storage and then went and
look at the manifolds on the 455 in the Avion and they appear to be
the same. That said the passenger side will still be the one most
difficult to find as it available only on the toranado engines and of
course on the GMC engines. Tornados are not that findable in the mens
malls. As listed in the "Junk Yard Gems" it is NOT the same as on the
RWD Olds 455/403 as they use a different oil filter assembly.
Regards
J. R. Wright
GMC GreatLaker
78 Buskirk 30' Stretch
1975 Avion (Under Reconstruction)
Michigan
On Jul 9, 2011, at 7:03 PM, Rob Mueller wrote:
> J.R.,
>
> IIRC someone mentioned that the exhaust manifolds off a Toronado are
> not the
> same also is that correct?
>
> Regards,
> Rob M.
> Sydney, Australia
> AUS '75 Avion-The Blue Streak TZE365V100428
> USA '75 Avion-Double Trouble TZE365V100426
>
>
> -----Original Message-----
> From: John Wright
>
> The passenger side because of the dog leg design caused by the oil
> filter location and mounting.
>
> J.R. Wright
>
>
>
> _______________________________________________
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> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: [GMCnet] Exhaust Manifold [message #134031 is a reply to message #134003] |
Sun, 10 July 2011 11:30 |
Steven Ferguson
Messages: 3447
Registered: May 2006
Karma: 0
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Senior Member |
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Gary,
I have a set and I think one side has cast in ribs. Can't remember the
donor vehicle though.
On Sat, Jul 9, 2011 at 9:43 PM, Kosier <gkosier@roadrunner.com> wrote:
> Rob,
>
> Don't trust these idiots! Ask the old parts man these critical
> questions.
> The manifolds are the exact same part number in the parts book
> for
> the Toro and the GMC. Lefts are the same for all motors. Rights
> are
> different between 455 and 403. The 403 manifold has an upward
> dog-leg to avoid the oil filter adapter. Caused by the shorter
> deck.
> The left side would be more common because of being used on both
> the 455 & 403. But they crack more because of the tin shroud for
> air cleaner heat which makes them run hotter.
>
> Gary Kosier long ago parts manager in Olds dealer
>
> ----- Original Message -----
> From: "Rob Mueller" <robmueller@iinet.net.au>
> To: <gmclist@temp.gmcnet.org>
> Sent: Saturday, July 09, 2011 8:37 PM
> Subject: Re: [GMCnet] Exhaust Manifold
>
>
> > G'day,
> >
> > I'm confused!
> >
> > R.D. asked:
> >
> > Which of the stock manifolds is hard to come by, Driver or pass
> > side?
> >
> > J.R. replied:
> >
> > The passenger side because of the dog leg design caused by the
> > oil filter
> > location and mounting.
> >
> > I asked:
> >
> > IIRC someone mentioned that the exhaust manifolds off a
> > Toronado are not the
> > same also is that correct?
> >
> > Dave Silva replied:
> >
> > That is correct.
> >
> > I reviewed Junk Yard Gems and noted:
> >
> > Exhaust Manifolds: Olds 455 Toronado manifolds will fit 455 or
> > 403 right
> > side only! Left side has donut problem. Inspect for cracks and
> > flatness.
> > Resurface?
> >
> > I ASSUME the right side is the passenger side.
> >
> > I put my memory cells in overdrive and I also seem to remember
> > someone
> > saying that the Toronado manifolds were not as "beefy" as the
> > GMC manifolds.
> >
> > New questions:
> >
> > Regarding the passenger side exhaust manifold:
> >
> > 1) Is the passenger side exhaust manifold from a Toronado
> > exactly the same
> > as the passenger side exhaust manifold from a GMC?
> >
> > 2) If they are not exactly the same what are the differences?
> >
> > 3) If they are not exactly the same will they still fit?
> >
> > Regarding the driver's side exhaust manifold:
> >
> > 1) Is the driver's side exhaust manifold from a Toronado
> > exactly the same as
> > the passenger side exhaust manifold from a GMC?
> >
> > 2) If they are not exactly the same what are the differences?
> >
> > 3) If they are not exactly the same will they still fit?
> >
> > Regards,
> > Rob M.
> > Sydney, Australia
> > AUS '75 Avion-The Blue Streak TZE365V100428
> > USA '75 Avion-Double Trouble TZE365V100426
> >
> >
> > -----Original Message-----
> > From: Mr.erf ERFisher
> >
> > read here
> >
> > http://www.gmcws.org/Tech/junkyardgems/index.htm
> >
> > gene
> >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
> _______________________________________________
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--
Steve Ferguson
Sierra Vista, AZ
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| Re: [GMCnet] Exhaust Manifold [message #134099 is a reply to message #134031] |
Sun, 10 July 2011 21:25 |
 |
USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Steve,
I have a spare set too and IIRC one of them has the ribs too. As a SWAG I'd
say it was the drivers side.
John,
IIRC they're sitting on the bottom shelf of the pallet racking, when you get
a chance could you take pictures of the side that faces outwards and the
side that faces inwards towards the block. Send the pictures to me and I'll
post them to the Photosite.
Regards,
Rob M.
Sydney, Australia
AUS '75 Avion-The Blue Streak TZE365V100428
USA '75 Avion-Double Trouble TZE365V100426
-----Original Message-----
From: Steven Ferguson
Gary,
I have a set and I think one side has cast in ribs. Can't remember the
donor vehicle though.
Steve Ferguson
Sierra Vista, AZ
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Exhaust Manifold [message #134108 is a reply to message #134099] |
Sun, 10 July 2011 21:49 |
Kosier
Messages: 834
Registered: February 2008
Karma: 1
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Senior Member |
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You are correct, Rob. The ribs are to give more surface to heat
the air that
is going up to the air cleaner.
Gary Kosier
----- Original Message -----
From: "Rob Mueller" <robmueller@iinet.net.au>
To: <gmclist@temp.gmcnet.org>
Sent: Sunday, July 10, 2011 10:25 PM
Subject: Re: [GMCnet] Exhaust Manifold
> Steve,
>
> I have a spare set too and IIRC one of them has the ribs too.
> As a SWAG I'd
> say it was the drivers side.
>
> John,
>
> IIRC they're sitting on the bottom shelf of the pallet racking,
> when you get
> a chance could you take pictures of the side that faces
> outwards and the
> side that faces inwards towards the block. Send the pictures to
> me and I'll
> post them to the Photosite.
>
> Regards,
> Rob M.
> Sydney, Australia
> AUS '75 Avion-The Blue Streak TZE365V100428
> USA '75 Avion-Double Trouble TZE365V100426
>
>
> -----Original Message-----
> From: Steven Ferguson
>
> Gary,
> I have a set and I think one side has cast in ribs. Can't
> remember the
> donor vehicle though.
>
> Steve Ferguson
> Sierra Vista, AZ
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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