1974 Corvette Carburetor #7044221 Quadrajet-Jet 454

[Raymond W.]

Based on the '73 & '74 TIM & JG, the correct quadrajet carburator for my '74, LS4, 4 spd (Jan. 11, 1974 build date) is the following; Number 7044221, Broadcast Code; FX, Manufacturer; Rochester. Does anyone know for certain that the FX Broadcast Code is correct. I came across a carburator with the same 7044221 number but the Broadcast Code was DX??? Any insights would be welcomed. Thanks.

[William C.]

Re: 1974 Corvette Carburetor #7044221 Quadrajet-Jet 454

In what location are you referring to a "Broadcast code? The only 2 letter code I can find in the Rochester ID information is a code for assembly plant, which I would take to be Rochester plant, not car plant.

[Raymond W.]

Re: 1974 Corvette Carburetor #7044221 Quadrajet-Jet 454

Bill,

The best reference to the carb that caused me to submit this thread can be viewed via ended eBay auction 260224856845. It still pulls up when searched...which would allow you to view several photos of the carb, the stampings, my original question to the seller and the reply I received. I reached out to other sources but was unsuccessful in gaining an answer to my question prior to the end of the auction. As I continue to pursue a similar item...I'm still trying to clarify.

Thanks,
Ray

[Patrick H.]

Re: 1974 Corvette Carburetor #7044221 Quadrajet-Jet 454

I see that Chicago Corvette Supply just bought the carb. Now you'll pay 3x as much for it when you see it again.

Just my thoughts, but at the Sell price I would have purchased the carb and worried about the code later.

Patrick

[William C.]

Re: 1974 Corvette Carburetor #7044221 Quadrajet-Jet 454

That code is indeed the plant code per the Rochester literature, and again I would have to believe that is for the Carburetor plant where it was manufactured as opposed to any specific vehicle assembly plant. Rochester operated plants in several locations in the late 60's-early 70's timeframe, and the plant code would give them the ability to execute a campaign based on the plant code if a specific plant had a manufacturing defect that required a recall.

[Harmon C.]

Re: 1974 Corvette Carburetor #7044221 Quadrajet-Jet 454

Bill
As a member of the 73-74 team we have found different codes for all the carburetors used in 73-74 and so far each part number has a different code. I notice we have the DX code Ray found on a 7044221 listed as a LS4 auto and NB2 (Calif. delivered) 7044505. I would be more interested in the part number and the date when judging but if what we thought was a broadcast code is a plant code I would like to know for sure and Ray's example makes your information food for thought.
Would you know if all thease codes were all plants?
FT,FS,FV,FU,EV,ET,FB,FA,FD,FC,HR,FX,FL,DX.
Thanks Lyle

[William C.]

Re: 1974 Corvette Carburetor #7044221 Quadrajet-Jet 454

I'm sorry Lyle, but the information I have only indicates (in three separate Rochester Catalogs) that the two digit code is a plant code. I do not have a document at hand regarding what the plant code breaks down to, nor have I ever seen one. I've attached the Rochester explaination of the stamped (65-67 era) codes as well as the 68-up "rolled" codes of the type we are discussing here. The service documentation may go beyond what I have here as this is a sales/application catalog reference, but I thought it significant that all the information regarding the two-digit code is as an assembly plant code, and also references a "shift code" That is what drives my thinking that the information was an identifier to control the damage in the case of a potential recall for emissions in that the problem, if manufacturing related could be tracked to a specific plant and shift, thus limiting the number of carburetors that would be actually removed and replaced in the event of a problem.