CORVETTE I MODEL REFERENCE 1981 ROCHESTER 4BC Follow procedure outlined below to determine carburetor andlor part number 1 Determine vehicle model check VIN DIVISIONAL CODE t 2 Determine engine and carburetor typo v I Ju 3 Part number can be determined by cross referencing I I corresponding column number with same column number on charts I VIN PRODUCTION DIV CODE USAGE COL NO 17081217 1 Y wIM T M18 1 A 1 1 17081218 1 Y wlA T MX3 wlCalif 2 17081228 1 Y w A T MX3l Fed 3 WAREHOUSING Arm msrniaunou uivisiori or csuerm morons CORPORATION CHEVROLET 14A i REV 12 83 3 27 c 3 000 GFiOUP G 1 6