~~Here is a New Air Cleaner Assembly & Filter  Kit  for the Air Cleaner of your 1951 - 1966  51 - 66 Cadillac. 
This is especially a great replacement for your 1957 Cadillac original oil bath filter. We get alot of requests for the 57 paper filter, however, the design of the original oil bath filter does not allow a paper element without replacing the entire filter assembly.

Fits 4 7/32" & 5 1/8" Carbs, for use on 2, 3 & 4 barrel carbs. Nice Chrome finish.
*PLEASE NOTE:  The threaded stud is aprox 4 1/2".  In some applications a longer stud may be required.*

This is also great if you are needing low clearance air filter this one is  2" tall.

Most roads in the 1950's were Gravel or Dirt, so the oil Bath was a must.  Now most cars do not need the the oil bath, the paper element will provide your Cadillac with better air flow

Please see Picture for the items  & to see if it will work for your application.