Carburetor Mix Up at the Factory?

[Marc S.]

It was brought to my attention that some cars that were built at the assembly plant could have received a different carburetor than actually coded for.
Example-a manual car ends up getting a carb that was intended for an automatic?

Is it unheard of for a 1971 454 4 speed corvette to to receive a 7041204 carb rather than a 7041205?

If so, how rare would that be and is there anyway to suggest it was originally installed in the car?

Thank you for any input.

[Michael W.]

Re: Carburetor Mix Up at the Factory?

Beware of statements made by anonymous people on the interweebs.

[Lawrence M.]

Re: Carburetor Mix Up at the Factory?

I do not think that would have happened if the calibration was different between the 2 carbs. If the calibration was different the vehicle would not be legal to sell in the U.S. as that carb would not be certified for that engine trans combo. I'm sure GM was pretty careful not to violate the Federal EPA Certification rules as GM could be hit with hefty fines.

[Dick W.]

Re: Carburetor Mix Up at the Factory?

I would say the chances are slim to none. As was mentioned the carbs are calibrated to meet Federal emission standards and great effort was made to keep the feds of their back for any violation

[Tim G.]

Re: Carburetor Mix Up at the Factory?

I had a 1965 250 horse Powerglide coupe that had 16,000 miles and had a carb for a manual transmission car. The dates were correct and the car was built within the last two days of production. That carb was being phased out. I never worried about it, we all thought it was original. I had it judged and did not mind that there was a deduction, but we all thought it probably was originally built that way.

[Terry M.]

Re: Carburetor Mix Up at the Factory?

Tim,
I would sugget there is a substantial difference in emissions standards between 1965 and 1971; just as there is between 1971 and more current years.

[Joe L.]

Re: Carburetor Mix Up at the Factory?

Tim,
I would sugget there is a substantial difference in emissions standards between 1965 and 1971; just as there is between 1971 and more current years.

Terry-----


Yes, for 1965 the only emission standard was that the car have PCV---that's it.

[Steven B.]

Re: Carburetor Mix Up at the Factory?

It was brought to my attention that some cars that were built at the assembly plant could have received a different carburetor than actually coded for.
Example-a manual car ends up getting a carb that was intended for an automatic?

Is it unheard of for a 1971 454 4 speed corvette to to receive a 7041204 carb rather than a 7041205?

If so, how rare would that be and is there anyway to suggest it was originally installed in the car?

Thank you for any input.

Yes, documentation from the factory. And the chances of that like Dick said---

[Kenneth B.]

Re: Carburetor Mix Up at the Factory?

Yes, documentation from the factory. And the chances of that like Dick said---

That is exactly what I told him on the CF forum. Slim chance it happened but if it did getting the NCRS judges to by it would be another story. Guess he didn't believe me.

[Marc S.]

Re: Carburetor Mix Up at the Factory?

Hello everyone!

Thank you all for the responses. It is clear as crystal now regarding carb and timing and assembly, etc.

K Barry thank you for your help here and otherwhere. You are a class act!