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| Re: [GMCnet] Carb numbers [message #342177 is a reply to message #342170] |
Mon, 01 April 2019 20:57   |
Bruce Hart
Messages: 1501
Registered: October 2011
Location: La Grange, Wyoming
Karma: 5
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Senior Member |
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Here are the numbers for the GMC's:
73-74 CARB#7043254
75,76, EARLY 77 CARB# 7045254 CALIFORNIA-7045554
77- WITH 403 CARB # 17057254 CALIFORNIA-17057559
78-CARB #17058254 CALIFORNIA-17057559
Carb numbers found on left side, stamped on the flat surface close to
secondary throttle shaft
Date code (4 digits) stamped in same area, 73 to 76 has number starting
with 70, 77 & 78
Carbs start with 170. donot interchange parts between these series
On Mon, Apr 1, 2019 at 6:25 PM Len Novak via Gmclist <
gmclist@list.gmcnet.org> wrote:
> I may have found a Quadrajet.
>
> Do part numbers 32747 and 36021 work for us?
>
> Len and Pat Novak
> 1978 GMC Kingsley
> The Beast II with dash lights that work and labels you can see!
> Fallbrook, CA new email: B52Rule@Roadrunner.Com
> http://www.gmcmhphotos.com/photos/showgallery.php?cat=4375
>
> www.bdub.net/novak/
>
>
>
>
>
> _______________________________________________
> GMCnet mailing list
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--
Bruce Hart
1976 Palm Beach
Milliken, Co
GMC=Got More Class
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Bruce Hart
1976 Palm Beach
1977 28' Kingsley
La Grange, Wyoming
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| Re: [GMCnet] Carb numbers [message #342187 is a reply to message #342177] |
Tue, 02 April 2019 09:08 |
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Tom Lins
Messages: 372
Registered: February 2004
Location: St Augustine, FL
Karma: 1
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Senior Member |
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Bruce Hart wrote on Mon, 01 April 2019 21:57Here are the numbers for the GMC's:
73-74 CARB#7043254
75,76, EARLY 77 CARB# 7045254 CALIFORNIA-7045554
77- WITH 403 CARB # 17057254 CALIFORNIA-17057559
78-CARB #17058254 CALIFORNIA-17057559
Carb numbers found on left side, stamped on the flat surface close to
secondary throttle shaft
Date code (4 digits) stamped in same area, 73 to 76 has number starting
with 70, 77 & 78
Carbs start with 170. donot interchange parts between these series
--
Bruce Hart
1976 Palm Beach
Milliken, Co
GMC=Got More Class
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There is a 7045254 on ebay
https://www.ebay.com/itm/rochester-4bbl-7045254-1975-76-chevy-motorhome-454-all-t-fed-cal/173677522613?hash=item286ffcaeb5:g:2DEAAOSwtFxcCGoJ:sc:USPSP riorityMailLargeFlatRateBox!32033!US!-1
Tom Lins
St Augustine, FL
77 GM Rear Twin, Dry Bath, 455, Aluminum Radiator Quad-Bag Suspension Solar Panel
Manuals on DVD
YOUTUBE Channel: GMC Dealer Training Tapes
http://www.bdub.net/tomlins/
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| Re: [GMCnet] Carb numbers [message #342191 is a reply to message #342170] |
Tue, 02 April 2019 12:00 |
BobDunahugh
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
Karma: 11
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Senior Member |
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There are a HUGE amount of Q-jet carbs out there with different numbers. The cubic inch numbers doesn't play into the criteria of enter change ability as much as you may think. Thus a Chevy 454 carb,and an Olds 455 Q-jet aren't the same. Cam, distributor, carb porting, expected RPM, and load range, shift points, gear ratios, and on. The carb numbers are extremely important It comes down to works or works correctly. Bob Dunahugh
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