Deciperhing these Carbs Numbers...

[Gregory M.]

I have a 1968 435HP Coupe and am considering flight judging. I bought the car last year and the carbs have the following numbers:

Rear: 3902353-EU
3859
2534

Center: 3902355-EV
3880 (or 3660)
2913

Front: 3902353-EU
3859
1893

Are these carbs correct for that year and motor? Which of those numbers are date codes and what are they? Any help would be appreciated.

GM

[Kenneth T.]

Re: Deciperhing these Carbs Numbers...

I have a 1968 435HP Coupe and am considering flight judging. I bought the car last year and the carbs have the following numbers:

Rear: 3902353-EU
3859
2534

Center: 3902355-EV
3880 (or 3660)
2913

Front: 3902353-EU
3859
1893

Are these carbs correct for that year and motor? Which of those numbers are date codes and what are they? Any help would be appreciated.

GM

Gergory,
I am no expert, new here as well but I have an old GM parts book that shows your primary (center) carb as correct.

The secondarys show to be correct part # 3902353 the second number shows to be 3660. There are guys here who will jump in a help soon.

The one below is a 69, I believe?

[John H.]

Re: Deciperhing these Carbs Numbers...

I have a 1968 435HP Coupe and am considering flight judging. I bought the car last year and the carbs have the following numbers:

Rear: 3902353-EU
3859
2534

Center: 3902355-EV
3880 (or 3660)
2913

Front: 3902353-EU
3859
1893

Are these carbs correct for that year and motor? Which of those numbers are date codes and what are they? Any help would be appreciated.

GM

Your center carb should be a 4055 (3940929), and the end carbs should be 3659's (3902353). The carbs you listed are service replacements, made in 1973-74; the ones listed as 3859 are probably 3659, and the 3880 is probably a 3660.