2100 Carb Identify/replace?

[Scott M]

have a swapped in 351w w/ a 2100 carb on it. trying to get a reman, but the ID tag (actually a sticker) is gone and none of the parts stores can make heads or tails of the few numbers and letters cast into the body.

there are a shitload of part #s for this carb, but are they really any different? Can i just pick any vehicle w/ a 351w and a 2100 carb that looks the same (throttle linkage, fuel inlet, manual choke, etc.), or am i missing something? Also, they come up as holleys, motorcraft, autolite, champion: is there a difference here?

 

[broncnaz]

They are all pretty much the same about the only things that are different are the choke setups and if you need one with the correct linkage for a automatic trans. other than that they will all work. They used the same part #'s on engines ranging from 289 to 429's I believe almost all 2100's are the same CFM although I heard there were some larger ones installed on Galaxies

 

[wildbill]

;D ;D ;D If I were you then I would ask for one for 390 or 400 with the right linkage for the trans(kick down) and go for it good luck and have fun. Bill %)

 

[TOFIC]

have a swapped in 351w w/ a 2100 carb on it. trying to get a reman, but the ID tag (actually a sticker) is gone and none of the parts stores can make heads or tails of the few numbers and letters cast into the body.

there are a shitload of part #s for this carb, but are they really any different? Can i just pick any vehicle w/ a 351w and a 2100 carb that looks the same (throttle linkage, fuel inlet, manual choke, etc.), or am i missing something? Also, they come up as holleys, motorcraft, autolite, champion: is there a difference here?

Careful here son, there are differences in these puppies. I just went through the Autolite 2100 carb class #101.
On the side of the carb bowl assembly is a number in a star burst. usually something like 1.23 or 1.08 or similiar ilk. This is the venturi size of the carb. You will want one with the 1.23 size venturi for the 351 especially if the motor has been "modified" to any extent.
On the base plate of the carb, there will be another number. This is the good one. Get that one and phone Christie or John at Pony Carbs and they can tell you what it is and where it came from. Then you can get the proper kit and parts for it to be redone OR send it to Pony and have them redo it for you. Mine was done by them and it runs sweet.
TOFIC

 

[Scott M]

Walker949, other than the venturi size...

which sounds like its one of two sizes (as told by the stamp on the side of the bowl), and extremities (i.e. trans, throttle linkage, choke...), are there other internal differences that could make this the wrong carb not work well, or at all on my motor. b/c if its just the venturi, size, i should just be able to look at a new one and tell if its the right one?

what about the fact that some say Champion, Autolite, Motorcraft.... b/c in the pics, they all look the same to me?

i did check out Pony carb and talk to a woman. she gave me an idea of what the stamping on the ear meant (like a 3 digit/letter code), but still doesn't seem to be enough info to cross reference with a parts store. i am considering their rebuild, but if the downtime is an issue, especially if i can walk into a store and buy a warranted one that i can return anywhere if need be.

 

[ElJefe]

The carb that I use on mine is from an 82 mustang. That was the only year that the HO engines came with a 2150 2 barrel carb. They came stock with the bigger venturis, larger jets and completely retuned main metering circuits for the HO engine. This was really the only HiPo 2bbl carb that ford ever produced. IMHO the best carb ford ever made if you can find one. The great offroadablilty of any standard 2150 and the HO tuning for a warmed over 302/351.

 

[TOFIC]

which sounds like its one of two sizes (as told by the stamp on the side of the bowl), and extremities (i.e. trans, throttle linkage, choke...), are there other internal differences that could make this the wrong carb not work well, or at all on my motor. b/c if its just the venturi, size, i should just be able to look at a new one and tell if its the right one?

what about the fact that some say Champion, Autolite, Motorcraft.... b/c in the pics, they all look the same to me?

i did check out Pony carb and talk to a woman. she gave me an idea of what the stamping on the ear meant (like a 3 digit/letter code), but still doesn't seem to be enough info to cross reference with a parts store. i am considering their rebuild, but if the downtime is an issue, especially if i can walk into a store and buy a warranted one that i can return anywhere if need be.

Well, assuming you have the stock, non modified, straight out of a car/truck 351 just about any of the 2100's will function. I assume you have a standard bronco with an automatic transmission and the carb you are looking at has the standard choke not the electric. In the sunburst on the side of the bowl you could use just about any size carb, from a 108 to a 123. If you have done ANY work to the motor you have to get up in the size of the venturi. You want the 123 or 118 size carb.
Motorcraft and Autolite are Ford stamps, Champion was a rebuilder of these carbs. what's the difference between them, so little, it makes no difference. If you are going to trade in the carb for a rebuild at a parts store, a good place to start is the early 80's Ford pickup motor. Makes little difference, mine for example, is from a 1969 Mustang Mach 1 car. Had it rebuilt at Pony, they asked what I was using it for, what it was on, and built the carb for that motor. Suggestion if your going the trade in route, 1983 Ford half ton 4x4 pickup is your starting point.
Now, watch it, when you change. If you are going from a standard Bronco motor to a later model 351 (80's) you are going to have to do some work on your distributor to make everything happy and content and working together.

Drop me a line if you have further questions.
TOFIC