later service replacement carb numbers

[unruhjonny]

I am subscribed on a thread over on PY in which the value of a SR '73 SD carb (#17053910) is discussed, and I was wondering what other SR carbs/numbers are out there, to which I got this reply;

There were only a single SR part number per car..No manual tranny numbers were ever made in SR system. All SR carbs will have the auto number...

Then this morning I cam across this SR carb, and it looks to be a replacement for a '71 Pontiac (#17054907), albeit, it's missing the choke mechanism;

http://www.ebay.com/itm/191088657924?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

now, I wrote that I theorized that these replacement carbs utilized the 1705 because fo the later fuel bowl, and them being for a 1970's application - which might be totally wrong;
But this '71 carb has me confused on two points;
1) the "year" indicated 1974
2) the last digit is an uneven number, which would have me think that it should be a manual transmission application, while the above quote suggests that only "auto" part numbers were issued...

Could someone please shed some light on this for me?

Could someone please share a list of these latter service replacement numbers, and their "correct" application?

I could have sworn my cousin used to have an NOS 17053911 - which I inderstood to be another SD application...
That puts the "known to me" SR carb numbers at:
17053910 = 1973 SD455
17054907 = 1971
17053911* (could have been a 17054911) = 197?

Thanks in advance for offering to share insight.

[Ethan1]

 Carb 17054907 and 17054911 were indeed SD455 Service Replacement carbs. There were probably others as well. Cliff would probably know more.

[unruhjonny]

Carb 17054907 and 17054911 were indeed SD455 Service Replacement carbs. There were probably others as well. Cliff would probably know more.

Maybe I'll wati to see if he chimes in here;
the 17054907 in question is a divorced choke, and has the 1971 throttle braket;
based on the combination of:

• 1971-1974 style carb top
  1972 & prior 4MV divorced choke setup
  1971 & prior baseplate

I would have guessed that it should be a service replacement for a 1971 4MV carb - NOT a 1973/4 4MC

[Ethan1]

Maybe I'll wati to see if he chimes in here;
the 17054907 in question is a divorced choke, and has the 1971 throttle braket;
based on the combination of:

• 1971-1974 style carb top
  1972 & prior 4MV divorced choke setup
  1971 & prior baseplate

I would have guessed that it should be a service replacement for a 1971 4MV carb - NOT a 1973/4 4MC

 FWIW, carb 17054907 is a Service Replacement for carb 7041262. Which is a '71 model year carb.

[unruhjonny]

ok, that make ALOT more sense - thanks!