CHEVROLET czvs MODEL REFERENCE 1980 ROCHESTER 4BC Follow procedure outlined below to determine carburetor and or part number 1 Determine vehicle model check VIN DIVISION CODE 2 Determine engine and carburetor type 3 Part number can be determined by cross referencing corresponding column number with same column number on charts Note 1 Used with EV Engine Note 2 Used with MC Engine Note 3 Used with AA AJ AR Engine Note 4 Used with AT AW AY Engine Note 5 Used with 307 and AB AK AS Engine Note 6 Used with 307 and AU AX AZ Engine Note 7 Used with 307 and AM AN Engine Note 8 Used with 307 and BA BB Engine VIN PRODUCTION DIV CODE USAGE COL NO 17080202 1 3 5 A 305H w A T MV4 l IV9 M33 Exc A C 1 17080202 1 A B F 350L w A T Exc A C 4 1 17080202 1 B 305H w Fed Exc A C 1 17080202 1 F 305H w A T M38 Fed Exc A C Z94 1 17080202 3 A 305H w A T Fed Exc A C 1 17080204 1 5 A 305H w A T MV4 MV9 M33 A C 2 17080204 1 A B F 350L w A T A C 2 17080204 1 B 305H w Fed A C 2 17080204 1 F 305H w A T M38 Fed AC Exc Z94 2 17080207 1 5 A 305H w M T M20 3 17080207 1 F 305H 350L w M T 3 17080243 1 AZ 231 3 w A T Fed 4 17080502 1 5 A 305H w A T l I33 M38 Exc A C 5 17080502 1 B F 305 I w Calif Exc A C Z28 5 17080504 1 5 A 305H w A T M33 M38 A C 6 17080504 1 B F 305H w Calif A C 6 17080274 12 F 4 9T 7 17080543 1 AZ 231 3 w A T Calif 4 8 17080516 1 5 A 305H w A T M33 lVl38 Exc A C 4 9 17080516 1 B F 305H w Calif Exc A C Z28 9 17080517 1 5 A 305H w A T M33 M38 A C 10 17080517 1 B F 305H wICa if A C 4 10 wAREHOuSING AND DISTRIBUTION DIVISION OF GENERAL MOTORS OORPORATIONYQIIEVROLET 10 REV 5 81 3 233 c 3 000 GROUP