Carb tags

I have identical looking carburetors, both off of Ford 460's but the tags on the carburetors have completely different numbers.
One carburetor is off of a motorhome, one is off of an F250.

Anyone know what those numbers mean regarding the carburetor?

 

If they are ford tags, the first 4 characters tell you what it was designed to fit, this is what the parts guys call the "engineering number". for example, if it says E6TE then it is for a 1986 truck, if it says D9AE then it's for a 1979 full size car, etc.

first letter is decade, second is last digit of year, third is vehicle series (A = car, Z = mustang, T = truck, U = van, S = tbird, etc)

 

post the carb numbers...

first row will be the Ford # ????-9510-? (numbers that squirrel mentioned) second row (I'm guessing they are holley's correct?) will be the List # and the third row will be the 4 digit date code

 

And if Ford still catalogs things the way they used to, somewhere in the parts catalog covering the vehicles that originally used the carb there will be a chart listing out all the parts for each carb by tag number so you can figure out what the differences are and whether they matter. Many differences on this stuff will be external, choke linkage and such.

 

Thanks for your responses. I'll post the numbers later maybe someone can decipher them for me.

 

Corrected post:

They are both 4BBL FOMOCO by Holley.

The numbers are:
86 F250
E5HE MB

B 5L 4

88 Motorhome (john Deere ch***is)
E6JL BA

B 7HI 7

 

could be original carbs from those vehicles, date codes are right as best I can tell (Dec 4 1985 and August 17 1987)

 

lewislynn

post the numbers that are stamped on the air horn of each carb. You will see LIST followed by 4 numbers. These number will give more info on those carbs

 

88 motorhome Ford 460 (John Deere Ch***is)
4 BBl Air horn #'s:
E6JL-9510-BA
List-50280

2297

86 Ford F250 W 460
4 BBl Air horn#'s:
E5HE-9510-MB
List-50262-1

3095
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If you don't recognize the numbers it might be because both of these carbs are California smog legal for their respective years.

The reason for my inquiry is because I think the previous owner of my motorhome rejetted the carburetor for a richer mixture. The motor would backfire occasionally through the carburetor...he, or some one probably thought it was too lean...That wasn't the problem, the problem(s) were too complicated to mention now but I want to make one of these carburetors work.

Thanks in advance...Louie

 

List 50280 = Holley Model 4180, 1985 > Ford w/ 7.5 L , Auto Trans, California & Canada Emissions. Built 229th day of 1987

List 50262-1 = Holley model 4180, 1985 Ford w/7.5L, Auto Trans, California Emissions. Built 309th day of 1985