Carburetor - ROCHESTER E4MC 4-Bbl: Identification

The Rochester E4MC carburetor number is stamped vertically on float bowl, near secondary throttle. This number must be used for ordering replacement components and performing adjustments. Carburetor identification number must be transferred onto new float bowl if float bowl is replaced.

This carburetors are equipped with a computer control feedback system. this is indicated by the first letter "E" of the identification number. The last letter of the identification number indicates type of choke used. Letter "C" indicates a hot air type choke.