I have two 2100s, one I was told came off of a Y, and another I took off of a Y. I want to know if they are actually for Y Blocks.



1, Tag #s DBA 1BA Q, Engineering # C1AE-Z

2, Tag #s KBA 1BA P, Engineering # C1AE-AB


Lawrenceville, GA

If they are both 1.02 venturi, which they probably are, they are both basically the same carb made for Ford car, with suffixes indicating relative date of production for 1961.  1.02's were used in 292s.  Even if they were for an early 332, they will work in a 292 just fine.

Mike, located in the Siskiyou mountains, Southern, OR 292 powered 1946 Ford 1/2 ton, '62 Mercury Meteor, '55 Country Squire (parting out), '64 Falcon, '54 Ford 600 tractor.

They both have 1.02 cast into them so that must be what they are.


Lawrenceville, GA

I know where two or three of these carburetors are in a local salvage yard and of course they would need to be rebuilt.  Does anyone know what they would be worth?  I can probably get them for ten dollars apiece.  

buddy

Buddy; You could try looking up "Pony Carburetors" (if they are still in business?) They used to list core prices for Autolite carbs.

Paul

Thanks Paul, I took your advice and found out Pony charges $120 to $200 for the different 2100 carburetor cores.  I think I might buy these 2100 carburetors I found at the salvage yard so I'll have them if I ever need one.  I recently bought a 4100 carburetor for $10 from the same place and after I rebuilt it she looks very nice.  Now I hope it will run   I know some may prefer Holley's and I won't argue the performance differences but these series Autolite carburetors are the simplest and easiest carburetors to rebuild and very seldom ever give any problem in my experience.   

buddy

I think the 4100 Autolite is superior to the Holley in many ways but you can only get them up to 680 cfm (those are hard to find) 600s are more available.  Very good carb.!!

   God Bless.   Tim                           http://yblockguy.com/

350ci Y-Block FED "Elwood", 301ci Y-Block Unibody LSR "Jake", 312ci Y-Block '58 F-100, 338ci Y-Block powered Model A Tudor

tim@yblockguy.com  Visalia, California    Just west of the Sequoias

I feel the same about the 2100s, forgot to add.

   God Bless.   Tim                           http://yblockguy.com/

350ci Y-Block FED "Elwood", 301ci Y-Block Unibody LSR "Jake", 312ci Y-Block '58 F-100, 338ci Y-Block powered Model A Tudor

tim@yblockguy.com  Visalia, California    Just west of the Sequoias

Tim,

From what I've read, my 312 bored to a 322 c.i.d. with an Isky E 4 cam doesn't need more than about 550 cfm for best overall performance.  The Autolite 4100 I have is a 1.12 venturi (600 cfm) from 1959 Thunderbird 352.  I hear it will likely have better upper RPM performance than lower RPM.  Have you had any experiences using a 600 CFM on a 312 or 322 and if so how did it perform? 

buddy

I am working on the same combo, 322/312 with similar cam to E4.  Some people say the larger 4100 wont work well, others the opposite.  It should work. 

I ran a 1.14 venturi 2100 on my 292 for a year, and it worked great.  The 4100 venturi's are smaller at 1.12, so unless the secondaries are too far open in low speed and cruise conditions, the 1.12 should work just as well on the primary side.  Secondaries are vacuum operated so I cant see problems there either. 

Jetting may need some slight adjustment.  Stock is around 48/56 or 57.   Anyway I am anxious to try it out, along with a couple other Holleys, models 4010 and 4011.

Last year and part of this a 1.08 venturi 2100 was in use on my 292.  Worked great.  Changed to a 1.08 4100.  The 4V has produced identical performance characteristics at low speed, idle and cruise, as the 2V did. 

Mike, located in the Siskiyou mountains, Southern, OR 292 powered 1946 Ford 1/2 ton, '62 Mercury Meteor, '55 Country Squire (parting out), '64 Falcon, '54 Ford 600 tractor.