Q-Jet for '71 350 auto

skinny · 05-15-2007, 01:14 AM

This whole carb thing has me confused. I need a carb for my car, which I believe still has the original Olds 350 in it. Through my research, I believe the correct carb would be the 7041202. I can't find these anywhere. Going by the intake, I need a 4 barrel, spread bore carb. Will any Q-Jet for a GM 350 work? Are there specific other model numbers I should look for? If I do decide to swap brands, again, are their specific part numbers?

After I get this carb thing figured out, things should go a little smoother. My knowledge increases after that.

Thanks in advance.

2blu442 · 05-15-2007, 08:38 PM

There are lots of different carbs from this era that would work fine. I believe the correct number for your application should end with 250 rather than 202 though. The key difference I believe is the choke setup, the curved pipe that runs into the intake started in 1970 and was used into the late 1970's for sure, I don't know when they started putting electronics in the carb, but I would try to stay away from that just because I don't know the effect of running a carb without those electronics connected. Ebay has lots of Quadrajets listed on a regular basis. John

skinny · 05-15-2007, 11:58 PM

Are the bolt patterns for mounting these the same from Olds to Chev to Pontiac, etc?

I have two that I am bidding on on Ebay right now, I hopefully one of them will work for me.

Oldsguy · 05-16-2007, 04:48 AM

Yes, that is described as "spread bore". A common description for the Quadrajet as opposed to the "square bore" of the Holley.

05-15-2007, 01:14 AM	#1 (permalink)
skinny Junior Member Join Date: Apr 2007 Location: Northern BC, Canada Posts: 11	Q-Jet for '71 350 auto This whole carb thing has me confused. I need a carb for my car, which I believe still has the original Olds 350 in it. Through my research, I believe the correct carb would be the 7041202. I can't find these anywhere. Going by the intake, I need a 4 barrel, spread bore carb. Will any Q-Jet for a GM 350 work? Are there specific other model numbers I should look for? If I do decide to swap brands, again, are their specific part numbers? After I get this carb thing figured out, things should go a little smoother. My knowledge increases after that. Thanks in advance. __________________ the remains of a 1971 Olds Cutlass Supreme

05-15-2007, 08:38 PM	#2 (permalink)
2blu442 Senior Member Join Date: Sep 2006 Location: Medford, Oregon Posts: 924	There are lots of different carbs from this era that would work fine. I believe the correct number for your application should end with 250 rather than 202 though. The key difference I believe is the choke setup, the curved pipe that runs into the intake started in 1970 and was used into the late 1970's for sure, I don't know when they started putting electronics in the carb, but I would try to stay away from that just because I don't know the effect of running a carb without those electronics connected. Ebay has lots of Quadrajets listed on a regular basis. John __________________ 1964 Cutlass Factory 4spd 1965 442 4spd 1967 442 Auto 1967 Cutlass Convertible 1968 442 Auto 1969 442 W30 Auto 1970 442 4spd 1971 Cutlass Flat Top Wagon 1973 Che*vy 3/4 Ton 454/TH400 Tow Vehicle Only the tow vehicle is finished!

05-15-2007, 11:58 PM	#3 (permalink)
skinny Junior Member Join Date: Apr 2007 Location: Northern BC, Canada Posts: 11	Are the bolt patterns for mounting these the same from Olds to Chev to Pontiac, etc? I have two that I am bidding on on Ebay right now, I hopefully one of them will work for me. __________________ the remains of a 1971 Olds Cutlass Supreme

05-16-2007, 04:48 AM	#4 (permalink)
Oldsguy Administrator Join Date: May 2004 Location: Lees Summit MO Posts: 3,142	Yes, that is described as "spread bore". A common description for the Quadrajet as opposed to the "square bore" of the Holley. __________________ Dan '77 Cutlass Supreme '46 2 door

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