Was looking at a car for sale and could swear the code on the carb was 7040285. Anyone have a reference which cites the original application ?

 

check out Carburetor.ca that's where i got my rebuild kit. they have all the numbers and applications/rebuild kits.

 

7040285:

70 = Rochester products division
4 = the carb was produced sometime from 1970 to 1975 inclusive
0 = the specific production year = 1970
2 = carb ID = 49 state Rochester quadrajet (CA qjets had a "5" in this position)
8 = GM division = usually a non-GM application for the number "8", possibly a marine engine application
5 = transmission ID for a car (automatic represented by an even number, or manual for an odd number, but not always true); don't know about a marine application.

Randy C.

 

That carb is a Q-Jet used on 70-71 various Ford/Mercury products with a 429 & standard trans according to my Hollander Interchange book.