C145 CHEVROLET MODEL REFERENCE 1978 ROCHESTER 2BC 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 VIN PRODUCTION DIV CODE USAGE COL NO 17058185 1 All exc B 231A w A T Fed 2nd Design 24 17058108 1 A 305U w A T Fed exc A C 7 17058110 1 A 305U w A T A C Fed 8 17058126 1 A19 27 37 305U w A T Alt exc A C 11 17058128 1 A 200 w A T exc A C Calif 12 17058130 1 A 200 w A T M29 A C exc Calif 9 17058132 1 A 200 w A T M29 A C exc Calif 10 17058133 1 A 200 w M T A C 3 17058408 1 A 305U w A T Calif exc A C 6 17058448 1 A G 231A w A T Calif 16 17058131 1 A 200 w M T exc A C 13 17058143 1 All 196 w M T 4 17058145 1 All 231A w M T Fed 15 17058147 1 All 231A w A T Alt 14 17058108 1 B 305U exc A C Calif 7 17058110 1 B 305U w A C exc Calif 8 17058408 1 B X 305U w Calif exc A C 6 17058112 1 F 305U w A T exc A C Calif 1 17058114 1 F 305U w A T A C exc Calif 2 17058141 1 H 231A w M T Alt 18 17058144 1 H 196 w A T 5 17058447 1 H 231A w M T Calif 17 17058448 1 H 231A w A T Calif 16 17058102 1 H 305U w A T Alt exc A C 19 17058103 1 H 305U w A T A C Alt 23 17058104 1 H 305U w A T Fed exc A C 20 17058105 1 H 305U w A T A C Fed 21 17058107 1 H 305U w M T M20 22 17058108 1 X 305U w A T exc A C Calif 7 17058110 1 X 305U w A T A C exc Calif 8 17058176 1 A19 27 37 305U w A T Alt exc A C 2nd Design 25 17058178 1 A19 27 37 305U w A T Alt A C 2nd Design 26 17058181 1 231A w M T Fed 2nd Design 27 17058145 1 231A w M T Fed 1st Design 28 17058410 1 A 305U w A T Calif A C 29 Y wAREI IOUSING AND DISTRIBUTION DIVISION OF GENERAL MOTORS CORPORATIONACREVROLETAI0 REV 5 81 3 87 c 3 000 GROUP