1956 single four carb update

[Edward M.]

I recently bought a pair of original 2366S carb tags; at least that is how they were advertised.

When I got them, and examined them closely with a magnifying glass, I see that one tag is a 2366S, dated A 6 (Jaunary, 56). The other tag is a 2366SA, dated B 6 (February 56).

This leads me to believe that the Carter carb engineering change from 2366S to 2366SA occurred in the January / February time frame.

I believe that the significant engineering change that occurred was a change to the top plate (1098 for 2366S vs. 1151 for 2366SA) to account for a difference in the choke arrangement. Other changes may have also occurred.

Now, given that the single four 56 engine wasn't available until April of 56 (announced via bulletin dated April 6, 1956), I am thinking it is safe to say that no 56 single four cars used a 2366S. The 2366SA would be correct for all 1956 single four cars.

This is beginning to sound like a good topic for a Restorer article...something like "1956 Single Four Barrel Corvettes, the Real Story." I'll get to work on that. Later.....

[James G.]

Re: 1956 single four carb update

Sounds logical, but what did they do with left over pre April carbs.

[Edward M.]

Re: 1956 single four carb update

I have seen a few 1098 top plates that have 1151 stamped into them. I assume that they re-worked the 2366S carbs into 2366SA carbs.
These cars were also used on some 1956 passenger car engines.