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Buick GS



Specifications



Buick Gran Sport Production Figures 1965-1972

Buick Gran Sport VIN Breakdown

Buick Gran Sport Engine Specifications

Buick Gran Sport Engine ID Codes



Buick Gran Sport Production Figures
1965 - 1972


1965
Model Engine 3-Speed Manual 4-Speed Manual 300 Automatic Number Produced
Post Coupe 400-4V 405 614 1,263 2,282
Hardtop 400-4V 604 3,077 7,670 11,351
Convertible 400-4V 123 598 1,426 2,147
Total GS Production for 1965 15,780


1966
Model Engine 3-Speed Manual 4-Speed Manual 300 Automatic Number Produced
Post Coupe 400-4V 178 308 1,349 1,835
Hardtop 400-4V 450 2,199 7,285 9,934
Convertible 400-4V 136 431 1,480 2,047
Total GS Production for 1966 13,816


1967
Model Engine 3-Speed Manual 4-Speed Manual 300 Automatic 400 Automatic Number Produced
California GS Coupe 340-4V N/A N/A 1,577 N/A 1,577
Hardtop 340-4V N/A N/A N/A N/A 3,692
Post Coupe 400-4V 116 168 N/A 730 1,014
Hardtop 400-4V 373 2,280 N/A 8,006 10,659
Convertible 400-4V 9 422 N/A 1,628 2,140
Total GS Production for 1967 19,626


1968
Model Engine 3-Speed Manual 4-Speed Manual 300 Automatic 400 Automatic Number Produced
California GS Coupe 350-4V N/A N/A 4,831 N/A 4,831
Hardtop 350-4V 455 844 7,018 N/A 8,317
Hardtop 400-4V 242 1,632 N/A 8,869 10,743
Convertible 400-4V 79 351 N/A 2,024 2,454
Total GS Production for 1968 26,345


1969
Model Engine 3-Speed Manual 4-Speed Manual 350 Automatic 400 Automatic Number Produced
California GS Coupe 350-4V N/A N/A 3,574 N/A 3,574
Hardtop 350-4V 233 632 5,440 N/A 6,305
Hardtop 400-4V 117 785 N/A 5,444 6,346
Hardtop 400-4V Stage 1 9 415 N/A 832 1,256
Convertible 400-4V 48 213 N/A 1,303 1,564
Convertible 400-4V Stage 1 4 77 N/A 131 212
Total GS Production for 1969 19,257


1970
Model Engine 3-Speed Manual 4-Speed Manual 350 Automatic 400 Automatic Number Produced
Hardtop 350-4V 224 884 8,840 N/A 9,948
Hardtop 455-4V 66 510 N/A 5,013 5,589
Hardtop 455-4V Stage 1 16 664 N/A 1,785 2,465
GSX Hardtop 455-4V N/A 81 N/A 197 278
GSX Hardtop 455-4V Stage 1 N/A 118 N/A 282 400
Convertible 455-4V 18 126 N/A 1,040 1,184
Convertible 455-4V Stage 1 1 67 N/A 164 232
Total GS Production for 1970 20,096


1971
Model Engine 3-Speed Manual 4-Speed Manual 350 Automatic 400 Automatic Number Produced
Hardtop 350-4V 25 358 5,603 N/A 5,986
Hardtop 455-4V N/A 103 N/A 1,378 1,481
Hardtop 455-4V Stage 1 N/A 114 N/A 687 801
GSX Hardtop 350-4V ? ? ? ? 124 Total GSX Production
GSX Hardtop 455-4V ? ? ? ? 124 Total GSX Production
GSX Hardtop 455-4V Stage 1 ? ? ? ? 124 Total GSX Production
Convertible 350-4V 6 51 599 N/A 656
Convertible 455-4V N/A 18 N/A 147 165
Convertible 455-4V Stage 1 N/A 9 N/A 72 81
Total GS Production for 1971 9,170


1972
Model Engine 3-Speed Manual 4-Speed Manual 350 Automatic 400 Automatic Number Produced
Hardtop 350-4V 16 353 5,526 N/A 5,896
Hardtop 455-4V N/A 84 N/A 1,015 1,099
Hardtop 455-4V Stage 1 N/A 101 N/A 627 728
GSX Hardtop 350-4V ? ? ? ? 44 Total GSX Production
GSX Hardtop 455-4V ? ? ? ? 44 Total GSX Production
GSX Hardtop 455-4V Stage 1 ? ? ? ? 44 Total GSX Production
Convertible 350-4V 5 39 601 N/A 656
Convertible 455-4V N/A 12 N/A 114 126
Convertible 455-4V Stage 1 N/A 15 N/A 66 81
Total GS Production for 1972 8,575



1965 - 1972 Buick VIN Decoding

Vehicle Identification Plates


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

1972 Models

1st Digit - Division
4 = Buick
2nd Digit - Series
D = Skylark
F = Sportwagon
G = GS
H = Skylark Custom
3rd and 4th Digits - Body Style
27 = 2 Door Post Coupe
36 = 4 Door Station Wagon
37 = 2 Door Hardtop Coupe
39 = 4 Door Hardtop Sedan
67 = 2 Door Converible
69 = 4 Door Sedan
5th Digit - Engine Code
H = 350-2bbl V8
J = 350-4bbl V8
K = 350-4bbl V8 (GS)
U = 455-4bbl V8 (GS455)
V = 455-4bbl V8 (Stage 1)
6th Digit - Model Year
2 = 1972
7th Digit - Assembly Plant
C = South Gate, MI
G = Framingham, MA
H = Flint, MI
X = Fairfax, KS
Y = Wilmington, DE
Z = Freemont, CA
Last 6 Digits - Production Number


ENGINE SPECIFICATIONS

Special, Skylark and Gran Sport Models



Engine Specifications
Engine Type & Size Carburetion HP Torque Bore x Stroke Comp. Ratio Oil Pressure
1964
V6 - 225 1 155@4600 225@2400 3.750x3.400 9.0:1 33
V8 - 300 2 210@4600 330@2400 3.750x3.400 9.0:1 33
V8 - 300 4 250@4800 352@3000 3.750x3.400 11.0:1 33
1965
V6 - 225 1 155@4600 225@2400 3.750x3.400 9.0:1 33
V8 - 300 2 210@4600 310@2400 3.750x3.400 9.0:1 33
V8 - 300 4 250@4800 335@3000 3.750x3.400 11.0:1 33
V8 - 401 4 325@4400 445@2800 4.1875x3.640 10.25:1 40
1966
V6 - 225 1 160@4200 235@2400 3.750x3.400 9.0:1 33
V8 - 300 2 210@4600 310@2400 3.750x3.400 9.0:1 33
V8 - 340 2 220@4000 365@2800 3.750x3.850 9.0:1 33
V8 - 340 4 260@4000 365@2800 3.750x3.850 10.25:1 33
V8 - 401 4 325@4400 445@2800 4.1875x3.640 10.25:1 40
V8 - 401 4 340@4600 445@3200 4.1875x3.640 10.25:1 40
1967
V6 - 225 1 160@4200 235@2400 3.750x3.400 9.0:1 33
V8 - 300 2 210@4600 310@2400 3.750x3.400 9.0:1 33
V8 - 340 2 220@4000 340@2400 3.750x3.850 9.0:1 33
V8 - 340 4 260@4000 365@2800 3.750x3.850 10.25:1 33
V8 - 400 4 340@5000 440@3200 4.040x3.900 10.25:1 37
1968
L6 - 225 1 155@4200 235@1600 3.875x3.530 8.5:1 38
V8 - 350 2 230@4400 350@2400 3.800x3.850 9.0:1 37
V8 - 350 4 280@4600 375@3200 3.800x3.850 9.0:1 37
V8 - 400 4 340@5000 440@3200 4.040x3.900 10.25:1 37
1969
L6 - 225 1 155@4200 235@1600 3.875x3.530 8.5:1 38
V8 - 350 2 230@4400 350@2400 3.800x3.850 9.0:1 37
V8 - 350 4 280@4600 375@3200 3.800x3.850 9.0:1 37
V8 - 400 4 340@5000 440@3200 4.040x3.900 10.25:1 37
V8 - 400 Stage 1 4 345@5800 440@3200 4.040x3.900 10.25:1 37
1970
L6 - 225 1 155@4200 235@1600 3.875x3.530 8.5:1 37
V8 - 350 2 260@4600 360@2600 3.800x3.850 9.0:1 37
V8 - 350 4 285@4600 375@3000 3.800x3.850 9.0:1 37
V8 - 350 4 315@4800 410@3200 3.800x3.850 10.25:1 40
V8 - 455 4 350@4600 510@2800 4.3125x3.900 10.0:1 40
V8 - 455 Stage 1 4 360@4600 510@2800 4.3125x3.900 10.0:1 40
1971
V8 - 350 4 260@4600 360@3200 3.800x3.850 ? ?
V8 - 455 4 315@4400 450@2800 4.3125x3.900 ? ?
V8 - 455 Stage 1 4 345@5000 460@3000 4.3125x3.900 ? ?
1972
Note: All power ratings in SAE Net
V8 - 350 4 195@4000 290@2800 3.800x3.850 ? ?
V8 - 455 4 225@4000 360@2600 4.3125x3.900 ? ?
V8 - 455 Stage 1 4 270@4400 390@3000 4.3125x3.900 ? ?
1973
Note: All power ratings in SAE Net
V8 - 350 2 150@4000 ? 3.800x3.850 ? ?
V8 - 350 4 195@4000 290@2800 3.800x3.850 ? ?
V8 - 455 4 225@4000 360@2600 4.3125x3.900 ? ?
V8 - 455 Stage 1 4 270@4400 390@3000 4.3125x3.900 ? ?



ENGINE ID NUMBERS



No.
Cyl.

CID

Description

Year and Engine Code

1964 1965 1966 1967 1968 1969 1970
V6 225 1 & 2 bbl. KH LH MH NH      
L6 250 1 bbl.              
V8 300 Standard KL LP ML NL      
V8 300 HP KP LL          
V8 340 2 bbl.     MA NA      
V8 340 4 bbl.     MB NB      
V8 350 2 bbl.         PO RO SO
V8 350 4 bbl.         PP RP SB,SP
V8 400 (401) 4 bbl.   LT MR, MT        
V8 400 4 bbl.       NR PR RR  
V8 455 4 bbl.             SR
V8 455 4 bbl. Stg. 1             SS











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