Here is a New Air Filter Conversion Kit for the Air Cleaner of your 1951 - 1956 Cadillac.  This element will not work on the tri-Carb set ups. This Listing is for the Paper Filament Element, Air Cleaner Gasket & Wingnut with stainless steel washer. This is a great fit & will keep the air filter from spinning & allow fresh air into the carb.  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 & still give a stock look. Please Note: The Steel Air Cleaner Housing is NOT included, It is for Reference Only.