1964-1967 Cowl Tag Breakdown

Line 1: Production time of vehicle. A typical production date would look as follows:
06C This production date tells us the Chevelle in question was produced in June (06) in the third week (C).
 
01 - January
07 - July
A - First Week
02 - February
08 - August
B - Second Week
03 - March
09 - September
C - Third Week
04 - April
10 - October
D - Fourth Week
05 - May
11 - November
E - Fifth Week
06 - June
12 - December

Line 2: Model Year, Division, Series, Body Style, Assembly Plant, Sequence number. The first number on line two is the year of production. The numbers that follow closely resemble the beginning VIN, showing manufacturer, division series, body type, assembly plant, and a sequential number used for production purposes.

Series Number - 1964
Series Number 1965-1967
53 - Chevelle 300 or El Camino, 6-cylinder
31 - Chevelle 300 or Nomad, 6-cylinder
54 - Chevelle 300 or El Camino, 8-cylinder
32 - Chevelle 300 or Nomad, 8-cylinder
55 - Malibu or Custom El Camino, 6-cylinder
33 - Chevelle 300 Deluxe, Chevelle, El Camino,

Nomad Custom, or Greenbrier, 6-cylinder
56 - Malibu or Custom El Camino, 8-cylinder
34 - Chevelle 300 Deluxe, Chevelle, El Camino,

Nomad Custom, or Greenbrier, 8-cylinder
57 - Malibu SS, 6-cylinder
35 - Malibu, Custom El Camino, 

or Concours, 6-cylinder
58 - Malibu SS, 8-cylinder
36 - Malibu, Custom El Camino, 

or Concours, 8-cylinder
37 - Super Sport or Concours, 6-cylinder
38 - Super Sport, El Camino SS, Concours,

or Concours Estate, 8-cylinder