Unknown motor and Q jet!

Status
Not open for further replies.

L92 OLDS

Comic Book Super Hero
Mar 30, 2012
2,872
3,050
113
West Michigan
What are you asking for it?

I'll post some
What are you asking for it?

Here are a few pics of the Q jet. Like mentioned above, it's the larger 800 cfm model that GM put on the 403's and big blocks. I sent you a PM with price.
800 cfm carb 2.jpg

800 cfm carb 1.jpg
 
  • Like
  • Love
Reactions: 4 users
Oct 14, 2008
8,806
7,746
113
Melville,Saskatchewan
the last number changes the carb from having a detent cable connection for an auto and a different bracket with no provision for the detent cable for the standard
Not necessarily. I bought a 76 Cutlass for parts, factory 350 auto. The carb had no drilled provision for a power booster, was in the intake and no kick down stud. Oldsmobile had to kick down on the gas pedal, my 70S was the same. I would have liked to have the original carb off the last 76 Olds 350 I bought. It is all set up for a manual trans, supposedly came out of a Delta 88. I never checked the last 73 350 for manual compatibility, hard to say but probably a lot more 4 spds optioned in 73. His carb will also be 800 CFM.
 

pontiacgp

blank
Mar 31, 2006
29,270
20,391
113
Kitchener, Ontario
Not necessarily. I bought a 76 Cutlass for parts, factory 350 auto. The carb had no drilled provision for a power booster, was in the intake and no kick down stud. Oldsmobile had to kick down on the gas pedal, my 70S was the same. I would have liked to have the original carb off the last 76 Olds 350 I bought. It is all set up for a manual trans, supposedly came out of a Delta 88. I never checked the last 73 350 for manual compatibility, hard to say but probably a lot more 4 spds optioned in 73. His carb will also be 800 CFM.

read what the numbers mean, who knows what mods were made to a 40 year carburetor. There are no indication in the carb number whether for the manual or power brake option

Transmission Application
7041240
1,3,5,7,9 – Odd numbers – manual transmission
0,2,4,6,8 – Even numbers – automatic transmission
 
Last edited:

1bad79

Royal Smart Person
Dec 3, 2011
1,023
890
113
Allendale mi
read what the numbers mean, who knows what mods were made to a 40 year carburetor. There are no indication in the carb number whether for the manual or power brake option

Transmission Application
7041240
1,3,5,7,9 – Odd numbers – manual transmission
0,2,4,6,8 – Even numbers – automatic transmission
This is the information I have always gone by but there are some weird qjet out there with numbers that seem inaccurate for the app one I found the last few years was a qjet on a dodge 360 with odd number and auto trans all original I bought it just because I thought it was weird and Unique
 

grandamman

G-Body Guru
Nov 7, 2005
810
415
63
up in the hills
read what the numbers mean, who knows what mods were made to a 40 year carburetor. There are no indication in the carb number whether for the manual or power brake option

Transmission Application
7041240
1,3,5,7,9 – Odd numbers – manual transmission
0,2,4,6,8 – Even numbers – automatic transmission

All of my factory 4 speed Grand Ams had a 1 for the last digit.
All of my autos have/had an even number.
The Grand Am manuals shift cars were all 1979's so the carb would be numbers matching for all 1979 Pontiacs with manual transmissions.
Someone that bought 1 from me said "it needed a new carb". When I asked about the original carb.....he threw it away.
He should have just stuck a $100 bill in it as he threw it out...
 

pontiacgp

blank
Mar 31, 2006
29,270
20,391
113
Kitchener, Ontario
This is the information I have always gone by but there are some weird qjet out there with numbers that seem inaccurate for the app one I found the last few years was a qjet on a dodge 360 with odd number and auto trans all original I bought it just because I thought it was weird and Unique

the ones on the Chryslers had the carb numbers but they didn't hold the same meaning

(Last digit or two is changed depending on application)
17085407,8,9,11,14,15,16,17,25,31,32,33,34
17087175,6,7
17087245

we should ask Mike what the carb number is on his Hellkitty.... :popcorn:
 
Last edited:
  • Haha
Reactions: 1 user

MrSony

Geezer
Nov 15, 2014
6,793
6,678
113
Des Moines, Iowa
the last number changes the carb from having a detent cable connection for an auto and a different bracket with no provision for the detent cable for the standard
All my 17057241, 17058241s and some 17057253s I have came off auto cars and have a nub for kickdown.
 

pontiacgp

blank
Mar 31, 2006
29,270
20,391
113
Kitchener, Ontario
All my 17057241, 17058241s and some 17057253s I have came off auto cars and have a nub for kickdown.

did you buy them new? It's easy to change the base and there has been 40 years to do it.
 
  • Haha
Reactions: 1 user

CopperNick

Comic Book Super Hero
Supporting Member
Feb 20, 2018
3,347
3,011
113
Canada
Two things to consider here. First is that Rochester was not the only mfgr of the Q-Jet, apparently Carter produced them as well. You can google your carb by its description and get references that don't include the P/N but there are supposedly pictures of parts and gaskets etc to surf.
Another thing is that there ought to be a tin metal tag attached to one of the upper body bolts that had the correct P/N number stamped into it. If your carb underwent a rebuild at one point or another in the past, that tag would have likely been discarded; most of the bulk rebuilders aren't too careful or fussy about keeping the original id indicators included with the carbs they reman.
Finally, don't rely on finding your numbers in a list that might be compiled mostly for Chevvies. Find a reference site that specializes in BOP type G-Bodies and see what they have to say.

Nick
 
Status
Not open for further replies.

GBodyForum is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. Amazon, the Amazon logo, AmazonSupply, and the AmazonSupply logo are trademarks of Amazon.com, Inc. or its affiliates.

Please support GBodyForum Sponsors

Classic Truck Consoles Dixie Restoration Depot UMI Performance

Contact [email protected] for info on becoming a sponsor