CHEVROLET MODEL REFERENCE 1978 ROCHESTER 1BC 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 I 3 Pan number can be determined by cr0ss referencing corresponding column number with same column number on chart l VIN PRODUCTION DIV CODE USAGE COL N0 J 17058014 I B F X 250 w A T exc A C Calif Non Integral Hd 2 I 17058020 1 B F X 250 wIA T A C exo Calif Non Integral Hd I I 17058314 1 B F X 250 wIA T Calif 3 I 17058013 I F X 250 w M T MI5 4 17058032 1 T 1 6E wIA T A C Fed 5 17058034 1 T I 6E wIA T Fed exo A C 6 1 17058035 I T 1 6E w M T Fed 7 17058042 1 T 1 6E w A T A C Alt II 17058044 1 T 1 6E w A T Alt exc A C I2 i 17058045 1 T 1 6E w ll I T Alt I3 i 17058332 I T 1 6E w A T A C Calif 14 i 17058334 I T 1 6E w A T Calif exo A C 15 17058335 I T 1 6E w M T Calif 16 17058036 1 T 1 6J w A T A C Ist Design 8 i 17058038 1 T 1 6J w A T exc A C Ist Design 9 17058037 I T 1 6J 2nd Design w A T exc A C I7 i 17058033 I T 1 6J 2nd Design w A T A C 18 i 17058031 1 T 1 6J wlM T 19 l l i I GM PARTS DIVISION GENERAL MOT0ns COHFORAT 0N CHEVROLET 10 REV 9 78 3 75 c 3 000 GROUP