Correct Quadrajet p/n for '67 Chevelle SS 396/325

[Chevelle SS 396 L78]

I am starting this thread because I recently found a similar thread on this topic for a '69, but it was 8 years old. Hopefully, I will get some responses. I'm glad I found that old thread! That Quadrajet Table by p/n and year in that thread is amazing!

Here’s my question: I bought a ‘67 Chevelle SS 396/325 TH400 car with the original engine (never been out of the car apparently), but it has a replacement Quadrajet by Carter p/n 7029202 (same for Chevelle, Camaro, etc).

Apparently, this replacement carb was installed at some point by removing the Quadrajet my engine was born with. My car was assembled in Atlanta the 3rd week in May 1967, and the engine was assembled May 10th at Tonawanda, NY.

So, which Quadrajet carburetor would have been on my engine from the factory? It has to be one of 3 models: 7027200 (early), 7027210 (late) or 7027216 (3rd Type)?

I have researched this as far as possible, but I haven’t found anything with respect to when each type of ‘67 Rochester Quadrajet of the three models were released for production/engine assembly.

Any help on this would be much appreciated!

Thanks,

John

[WILMASBOYL78]

It would seem that the production date of the carb relative to the build date of the car would be a good place to start. With a May build date for the car...component dates should precede that date. Most parts range from 30-90 days behind...with some exceptions.

I would start there....look for a March or April unit and see what you can find. I'm sure some of the Chevelle gurus know more about this and probably have info on common dates for the carbs.

-wilma

[Chevelle SS 396 L78]

Thanks! That pretty much is all I have researched to date. Very little information on release dates for each of the 3 models of Qjets used on the 396/325 TH400 engines during production for the ‘67 cars (including Passenger, Camaro SS, & Chevelle SS).

I have guessed the early example 7027200 was likely used only about 5 months, and the 3rd Type 7027216 began use the first of June (my engine was assembled May 10, so it likely had the late example 7027210)....I have seen this model for sale with date stamps in March of ‘67, so my car likely had the late model on it originally “however” it has been proven with other GM parts that some parts were available and used “earlier” than stated or believed historically.

So, this is not a general question but one that hopefully gets the attention of someone who has knowledge in this area or has a car with similar build dates with this engine/trans setup.

[Chevelle SS 396 L78]

Bump!

[Lynn]

My opinion would be that a May built car is definitely "late" in the model year, even if not so in the calendar year.

That would have been within three months of the end of 67 production.

Though not definitive, I would not over think this (well, then again maybe I would, as I have a tendency to do so on my own stuff) and just look for a correctly dated 210 carb. Easier for me to shoot from the hip and make the call on someone else's car!

I cannot imagine any scenario where anyone could challenge that as being correct.

Here is one dated March 7: https://www.ebay.com/itm/256199789589

Not knowing who "remanufactured" it, I would look for a core and send it to Eric Jackson. He da man. Have used him multiple times with nothing less than spectacular results. I know he got sideways with some Corvette guys, but he has never been anything but good to me.

If you are not wanting one fully restored, you can rebuild yourself. They are not difficult to work on. Just make sure you get all the numbers for jets and other parts, to make sure someone hasn't been in it before trying to "improve" it. On my 68 El Camino, I found that recurving the distributor, running about 10 degrees initial with 36 total and plugging the vac advance to manifold vac allowed me to go down two sizes on primary jets. Got fantastic gas mileage on the highway for what it was. OD trans helped I am certain. Your results may vary.

If for some reason you don't want to use Eric, there is another fellow now sponsoring (I think) on this site that has had great reviews for carb resto.

Good luck.

[67since67]

I'm not much help here, FWIW my latest Q-Jet car 03D has a 211 carb dated 052. I'm also guessing your's is borderline between "late" and 3rd type. Since some late production '67 parts carried over to the '68 model year (323 396 blocks in June '67 for example) the 3rd type carbs may be later than you think.
IF..it were my car I would go with a 210 carb.

The one on eBay, located in Eugene OR, seller is likely Chicago Corvette Supply. Al F. moved his operation west a while back. Don't know who his rebuilder might be.

[Chevelle SS 396 L78]

I appreciate the input very much! Last year circa end of September a local Corvette Shop right down the road from me was having a going out of business online auction and, I went down to chat with the owner...actually I went to talk with him about my carburetor woes when he told me he was finally retiring (Vietnam Vet about my age). I got really excited seeing one of two boxes filled with old carburetors...one was dated 1968 (off a Vette) and I wanted to snag that box, but unfortunately on-line auctions like that can really go fast after waiting a long time, so I actually missed out on "both" boxes of carburetors! I wanted to get at least one to take apart and learn from if nothing else. Then sell the others on ebay.


Most of the places I've found won't give you a date correct carb to start with....won't even look! So, I'd prefer to find one and rebuild it myself or go to someone trusted...like who you've recommended. I just don't trust some of these ebay guys, especially with ratings in the 96% range or lower!


I tend to agree that the 210 Late Rochester would be a good fit for my 3rd week in May Chevelle SS. My first Chevelle SS was a second week in June build but it had a Holley 780 cfm Carburetor from the factory! Yes, it was 1 of the 612 L78 Chevelles in 1967! Still sick I let that one go! I prefer Holleys too, but I'm learning that the Quadrajet can be just fine once it is set-up properly.

[Bill Pritchard]

The guy that Lynn refers to who is a sponsor on this site (Custom Rebuilt Carbs) also sells on eBay. I bought one from him off of eBay years ago and it was great.