1965-1971 Models
1st Digit - Division
4 = Buick
2nd and 3rd Digits - Series
33 = Special V6 (1965-67)
33 = Deluxe L6 (1968-69)
33 = Skylark L6 (1970-71)
34 = Special V8 (1965-67)
34 = Special Deluxe V8 (1968-69)
34 = GS350 (1968-70)
34 = GS (1971)
34 = Skylark V8 (1970-71)
34 = Sportwagon V8 (1970-71)
35 = Special Deluxe V6 (1965-67)
35 = Skylark V6 (1968-69)
35 = Skylark 350 (1970-71)
36 = Special Deluxe V8 (1965-67)
36 = Skylark V8 (1968-69)
41 = Sportwagon V6 (1965)
42 = Sportwagon V8 (1965)
43 = Skylark V6 (1965-67)
44 = Skylark V8 (1965-67)
44 = Skylark Custom (1968-71)
44 = Sportwagon V8 (1967-69)
46 = Skylark Gran Sport (1964-66)
46 = GS400 (1967-69)
46 = GS455 (1970)
48 = Sportwagon Custom V8 (1967-69)
4th and 5th Digits - Body Code
07 = 2 Door Post Coupe
17 = 2 Door Hardtop Coupe
27 = 2 Door Post Coupe
35 = 4 Door Station Wagon
36 = 4 Door Station Wagon
37 = 2 Door Hardtop Coupe
39 = 4 Door Hardtop Sedan
55 = 4 Door Sportwagon
56 = 4 Door Sportwagon Custom
65 = 4 Door Sportwagon
66 = 4 Door Sportwagon Custom
67 = 2 Door Convertible
69 = 4 Door Sedan
6th Digit - Model Year
5 = 1965
6 = 1966
7 = 1967
8 = 1968
9 = 1969
0 = 1970
1 = 1971
7th Digit - Assembly Plant Code
B = Baltimore, MD
C = South Gate, CA
D = Atlanta, GA
G = Framingham, MA
H = Flint, MI
I = Oshawa, Ontario (Canada)
K = Kansas City, MO
V = Bloomfield, IL
X = Kansas City, KS
Y = Wilmington, DE
Z = Fremont, CA
Last 6 Digits - Production Number
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