Carter Carbeurator I.D. Numbers

[Mike1268]

Hello all.  I'm trying to get some general info on Carter Carburetors.  The I.D. on my 69 Charger 383 4speed manual is "L8 4615 S"  My first question is on the suffix.  I've seen "S" and "SA".  I'm guessing "S" is for a manual transmission, and "SA" is for the automatic transmission.  Is this correct?  My second question is what is internally different between the manual and automatic transmission carburetors?   Thanks

[A383Wing]

the difference is going to be minor....either a small difference in jet size, and/or a small difference in metering rod size...either carb will work for you

Bryan

[Mike1268]

Thanks for your reply.  It's those minor differences that I'm looking for.  The carb that's on the car is original to the car and runs great.  I'm going to purchase the same model hopefully cheap and rebuild it just to have a spare. If I end up with an automatic version I'd like to have the specs to re-build it to the manual version.

[A383Wing]

the factory service manual will have the specs for each carb listed in the fuel section

Bryan

[John_Kunkel]

My first question is on the suffix.  I've seen "S" and "SA".  I'm guessing "S" is for a manual transmission, and "SA" is for the automatic transmission.  Is this correct?

No. All Carter carburetor numbers are followed with the letter 'S". Running engineering changes are designated by "SA", "SB", etc. A carb for a manual trans will have a completely different number than one for an automatic.

My second question is what is internally different between the manual and automatic transmission carburetors?   Thanks

The difference could be any internal part i.e. jets, rods, springs and even entire boosters.