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Home » Public Forums » GMCnet » Wanted: Quadrajet for Glacier 1973 GMC Motorhome (I am still looking for a usable Quadrajet carb)
icon14.gif  Wanted: Quadrajet for Glacier 1973 GMC Motorhome [message #212059] Mon, 24 June 2013 13:00 Go to next message
Jeff Eichen is currently offline  Jeff Eichen   United States
Messages: 9
Registered: October 2009
Karma: 0
Junior Member
Hi All,

I am still looking for a usable Quadrajet carb for mu Glacier 1773.

I am AOK with a decent unit non rebuild off a running engine.

I am looking to pay $100-200.

I am open to the price and needing this ASAP, my project is stalled until I Proceed!

Thanks Jeff Eichen 360-774-2235
jeichen@anet.net
Re: [GMCnet] Wanted: Quadrajet for Glacier 1973 GMC Motorhome [message #212063 is a reply to message #212059] Mon, 24 June 2013 14:03 Go to previous messageGo to next message
Sammy Williams is currently offline  Sammy Williams   United States
Messages: 522
Registered: August 2010
Karma: -2
Senior Member
Consider a change to Edelbrock. The Edelbrock power system would help
performance and serviceability.

(No I dont work for them I only use their products.) With GM having only
F.I. they may not even have anyone left that can service an Q-jet anymore
should it become necessary.

Or you could consider a change to F.I like I am when I get a GMC.

(OPINION ONLY)

S. Williams


On Mon, Jun 24, 2013 at 1:00 PM, Jeff Eichen <jeichen@anet.net> wrote:

>
>
> Hi All,
>
> I am still looking for a usable Quadrajet carb for mu Glacier 1773.
>
> I am AOK with a decent unit non rebuild off a running engine.
>
> I am looking to pay $100-200.
>
> I am open to the price and needing this ASAP, my project is stalled until
> I Proceed!
>
> Thanks Jeff Eichen 360-774-2235
> mailto:jeichen@anet.net
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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Re: [GMCnet] Wanted: Quadrajet for Glacier 1973 GMC Motorhome [message #212103 is a reply to message #212063] Mon, 24 June 2013 18:12 Go to previous messageGo to next message
powerjon is currently offline  powerjon   United States
Messages: 2446
Registered: January 2004
Karma: 5
Senior Member
Jeff & Sammy,
The 75 Avion GMC coach that I am doing a restoration on has a Holley square bore 4 barrel carb that was installed by the PO just before I got the coach in 2007. We picked the coach up in Hersey PA and did a 2 day trip across the payway back to Michigan. The coach seemed to run quite well with lots of power in the hills even thou it was a 3.07 final. I need to take a closer look on how it is put together. With infinite adjustibility of the holly carbs I would think that you could get one to run well.\
JR Wright
78 Buskirk Stretch
Michigan

On Jun 24, 2013, at 3:03 PM, Sammy Williams <bd5av8r@gmail.com> wrote:

> Consider a change to Edelbrock. The Edelbrock power system would help
> performance and serviceability.
>
> (No I dont work for them I only use their products.) With GM having only
> F.I. they may not even have anyone left that can service an Q-jet anymore
> should it become necessary.
>
> Or you could consider a change to F.I like I am when I get a GMC.
>
> (OPINION ONLY)
>
> S. Williams
>
>
> On Mon, Jun 24, 2013 at 1:00 PM, Jeff Eichen <jeichen@anet.net> wrote:
>
>>
>>
>> Hi All,
>>
>> I am still looking for a usable Quadrajet carb for mu Glacier 1773.
>>
>> I am AOK with a decent unit non rebuild off a running engine.
>>
>> I am looking to pay $100-200.
>>
>> I am open to the price and needing this ASAP, my project is stalled until
>> I Proceed!
>>
>> Thanks Jeff Eichen 360-774-2235
>> mailto:jeichen@anet.net
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
Re: Wanted: Quadrajet for Glacier 1973 GMC Motorhome [message #212310 is a reply to message #212059] Wed, 26 June 2013 09:40 Go to previous messageGo to next message
habbyguy is currently offline  habbyguy   United States
Messages: 896
Registered: May 2012
Location: Mesa, AZ
Karma: 3
Senior Member
I'll echo JR's comments on the Holley. My coach came with a Holly (though a spreadbore, not a squarebore). Starts, runs, and pulls great - hard to fault it at all. I'm going to be replacing it with a FI system eventually, but mainly because a lot of the driving I'll be doing is at high altitude (where any carb-fed engine is going to suffer at least a little).

Mark Hickey Mesa, AZ 1978 Royale Center Kitchen
Re: Wanted: Quadrajet for Glacier 1973 GMC Motorhome [message #213017 is a reply to message #212310] Tue, 02 July 2013 09:10 Go to previous messageGo to next message
Bill Freeman is currently offline  Bill Freeman   United States
Messages: 122
Registered: March 2004
Location: Colerain, NC
Karma: 1
Senior Member
Any fuel injected engine is ALSO going to suffer at high altitude. The power output is going to go down in direct proportion to the air density. At high altitude and especially on a hot day you are going to lose power no matter what. The only way to avoid to this rule of physics is by installing supercharger on your engine. A properly tuned carburetor is no worse than fuel injection under these conditions.

Bill Freeman
78 Royale 73 Sequoia
Colerain, North Carolina
Re: Wanted: Quadrajet for Glacier 1973 GMC Motorhome [message #213020 is a reply to message #212059] Tue, 02 July 2013 10:01 Go to previous messageGo to next message
Cadillackeeper is currently offline  Cadillackeeper   United States
Messages: 464
Registered: October 2012
Location: Fort Lauderdale
Karma: 1
Senior Member
Woosh,I would never change out the Quqdrajet on my car or on the coach.I have numorous reasons,Simple easy and PLENTIFUL.All other
systems are so tempermental and are usually used for racing a quarter mile.You can run a handful of sawdust through a quad.One little spec of debris and all others Fail instantly.New almost
always is NEVER better.Its just what they call "Value Emgineered"

Listen to what everyone says and make your own educated decision.

It is just a metered drip can,why everybody wants to re invent the wheel is just plain ignorant to me.I feel bad for kids now as they really have no chance.


77 455 Elaganza II and 67 Animal, Built 500 Powered Eldo
Re: Wanted: Quadrajet for Glacier 1973 GMC Motorhome [message #213028 is a reply to message #212059] Tue, 02 July 2013 12:43 Go to previous messageGo to next message
Carl S. is currently offline  Carl S.   United States
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
Senior Member

Jeff Eichen wrote on Mon, 24 June 2013 11:00

Hi All,

I am still looking for a usable Quadrajet carb for mu Glacier 1773.

I am AOK with a decent unit non rebuild off a running engine.

I am looking to pay $100-200.

I am open to the price and needing this ASAP, my project is stalled until I Proceed!

Thanks Jeff Eichen 360-774-2235
jeichen@anet.net



I know this will be considered blasphemy to most here, but at the Western States rally in Las Vegas a few years ago, Joe Mondello (may he rest in peace) stated that he could build a Q-jet that would perform "just as well" as the motorhome specific carb. I forgot the price point he was talking, but I think it was in the $400.00 - $500.00 range, or less. I don't know if that is still a possibility now that Joe is gone.


Carl Stouffer '75 ex Palm Beach Tucson, AZ. Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
Re: [GMCnet] Wanted: Quadrajet for Glacier 1973 GMC Motorhome [message #213048 is a reply to message #213028] Tue, 02 July 2013 15:22 Go to previous messageGo to next message
fitzmorrispr is currently offline  fitzmorrispr   United States
Messages: 137
Registered: February 2013
Location: Los Angeles
Karma: 0
Senior Member
You may all want to take a look at SMI.
http://www.smicarburetor.com/

On Tue, Jul 2, 2013 at 10:43 AM, Carl Stouffer <carljr3b@yahoo.com> wrote:
>
>
> Jeff Eichen wrote on Mon, 24 June 2013 11:00
>> Hi All,
>>
>> I am still looking for a usable Quadrajet carb for mu Glacier 1773.
>>
>> I am AOK with a decent unit non rebuild off a running engine.
>>
>> I am looking to pay $100-200.
>>
>> I am open to the price and needing this ASAP, my project is stalled until I Proceed!
>>
>> Thanks Jeff Eichen 360-774-2235
>> jeichen@anet.net
>
>
>
> I know this will be considered blasphemy to most here, but at the Western States rally in Las Vegas a few years ago, Joe Mondello (may he rest in peace) stated that he could build a Q-jet that would perform "just as well" as the motorhome specific carb. I forgot the price point he was talking, but I think it was in the $400.00 - $500.00 range, or less. I don't know if that is still a possibility now that Joe is gone.
> --
> Carl S.
> '75 ex Palm Beach
> Tucson, AZ.
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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The Greatfruit: 1973, 26', Canyon Lands or Painted Desert, in Pineapple Yellow
Re: [GMCnet] Wanted: Quadrajet for Glacier 1973 GMC Motorhome [message #213049 is a reply to message #213048] Tue, 02 July 2013 15:25 Go to previous messageGo to next message
fitzmorrispr is currently offline  fitzmorrispr   United States
Messages: 137
Registered: February 2013
Location: Los Angeles
Karma: 0
Senior Member
oops, forgot to mention that a good friend of mine recommends them,
after helping a friend of his install one on a vehicle, and finding
the resulting performance changes to be excellent

On Tue, Jul 2, 2013 at 1:22 PM, Patrick Fitzmorris
<fitzmorrispr@gmail.com> wrote:
> You may all want to take a look at SMI.
> http://www.smicarburetor.com/
>
> On Tue, Jul 2, 2013 at 10:43 AM, Carl Stouffer <carljr3b@yahoo.com> wrote:
>>
>>
>> Jeff Eichen wrote on Mon, 24 June 2013 11:00
>>> Hi All,
>>>
>>> I am still looking for a usable Quadrajet carb for mu Glacier 1773.
>>>
>>> I am AOK with a decent unit non rebuild off a running engine.
>>>
>>> I am looking to pay $100-200.
>>>
>>> I am open to the price and needing this ASAP, my project is stalled until I Proceed!
>>>
>>> Thanks Jeff Eichen 360-774-2235
>>> jeichen@anet.net
>>
>>
>>
>> I know this will be considered blasphemy to most here, but at the Western States rally in Las Vegas a few years ago, Joe Mondello (may he rest in peace) stated that he could build a Q-jet that would perform "just as well" as the motorhome specific carb. I forgot the price point he was talking, but I think it was in the $400.00 - $500.00 range, or less. I don't know if that is still a possibility now that Joe is gone.
>> --
>> Carl S.
>> '75 ex Palm Beach
>> Tucson, AZ.
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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The Greatfruit: 1973, 26', Canyon Lands or Painted Desert, in Pineapple Yellow
Re: [GMCnet] Wanted: Quadrajet for Glacier 1973 GMC Motorhome [message #213053 is a reply to message #213049] Tue, 02 July 2013 16:07 Go to previous messageGo to next message
Cadillackeeper is currently offline  Cadillackeeper   United States
Messages: 464
Registered: October 2012
Location: Fort Lauderdale
Karma: 1
Senior Member
Nice http://www.smicarburetor.com/ Looks like they got what you need. I
bet Coop,Applied or Sirum of course all have what you need as well and probably always will. Those guys all know not to change certain things on these coaches!!


77 455 Elaganza II and 67 Animal, Built 500 Powered Eldo
Re: Wanted: Quadrajet for Glacier 1973 GMC Motorhome [message #213077 is a reply to message #213017] Tue, 02 July 2013 20:02 Go to previous messageGo to next message
Matt Colie is currently offline  Matt Colie   United States
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
Senior Member
Bill Freeman wrote on Tue, 02 July 2013 10:10

Any fuel injected engine is ALSO going to suffer at high altitude. The power output is going to go down in direct proportion to the air density. At high altitude and especially on a hot day you are going to lose power no matter what. The only way to avoid to this rule of physics is by installing supercharger on your engine. A properly tuned carburetor is no worse than fuel injection under these conditions.

Bill,

While you are correct about all naturally aspirated engines loosing power with altitude, I am afraid that I have to correct you about the difference with a modern (even 7747) closed loop fuel control system. Virtually every non-altitude corrected carburetor will go rich past the best power level at and above 6kMSL. That means it will take a significantly bigger hit than the same engine with a closed loop control.

Matt


Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
Re: Wanted: Quadrajet for Glacier 1973 GMC Motorhome [message #213089 is a reply to message #212059] Tue, 02 July 2013 21:43 Go to previous messageGo to next message
Cadillackeeper is currently offline  Cadillackeeper   United States
Messages: 464
Registered: October 2012
Location: Fort Lauderdale
Karma: 1
Senior Member
I do know that there is and always was special high altitude cycles/snowmobiles and
the old cars had strange adnoids? that compensated for that atmosphere in the carbs.

Air is different Huh?


77 455 Elaganza II and 67 Animal, Built 500 Powered Eldo
Re: Wanted: Quadrajet for Glacier 1973 GMC Motorhome [message #213097 is a reply to message #213089] Tue, 02 July 2013 23:17 Go to previous messageGo to next message
Phantom2 is currently offline  Phantom2   United States
Messages: 94
Registered: September 2012
Location: Springfield, IL
Karma: 0
Member
several Q-Jets on e-bay.

here's one listed as GMC motorhome


http://www.ebay.com/itm/1973-1978-GMC-Motorhome-Quadrajet-Carburetor-7045254-/300928373218?pt=Motors_RV_Trailer_Camper_Parts_Accessories&hash=item 4610ba91e2&vxp=mtr


Larry Hopkins 75 Avion Springfield, IL
Re: [GMCnet] Wanted: Quadrajet for Glacier 1973 GMC Motorhome [message #213105 is a reply to message #213097] Wed, 03 July 2013 01:08 Go to previous messageGo to next message
kelvin is currently offline  kelvin   United States
Messages: 608
Registered: February 2004
Location: Eugene, OR
Karma: 0
Senior Member
Good luck finding one with a flat body and airhorn. I've sourced three
of them and following Dick Paterson's guidelines they're all warped
beyond what he is willing to rebuild.

Just something to keep in mind...

Kelvin
'73 23' with a hodgepodge GMC Q-jet that works pretty well


On 7/2/2013 9:17 PM, Larry wrote:
>
> several Q-Jets on e-bay.
>
> here's one listed as GMC motorhome
>
>
> http://www.ebay.com/itm/1973-1978-GMC-Motorhome-Quadrajet-Carburetor-7045254-/300928373218?pt=Motors_RV_Trailer_Camper_Parts_Accessories&hash=item 4610ba91e2&vxp=mtr

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Re: Wanted: Quadrajet for Glacier 1973 GMC Motorhome [message #213327 is a reply to message #212059] Fri, 05 July 2013 07:34 Go to previous message
petemosss is currently offline  petemosss   United States
Messages: 221
Registered: August 2008
Location: Jacksonville, Florida
Karma: 0
Senior Member
Jeff, If and when my rebuilt non correct # carb screws up I'm headed this way.

http://www.ebay.com/itm/Holley-0-80555C-650CFM-Model-4175-Factory-Refurbished-/281130398510?pt=Motors_Car_Truck_Parts_Accessories&vxp=mtr&hash =item4174ad732e

A couple of brave souls have stated here before that out of the box they got identical performance and mpg. After messing with power-valves, jets etc. they went back to the way it arrived.


Pete 74 Canyon Lands 26' "Emery"
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