1964 Pontiac Engine Identification Codes

Year

Code

C.I.D.

Carb

Trans

HP@RPM

Torque@RPM

Bore/ Stroke

Comp. Ratio

1964
01A
389
2bbl
MT 3spd
215 @ ?
?
4.063 x 3.75
8.6:1
02B
389
2bbl
MT 3spd
215 @ ?
?
4.063 x 3.75
8.6:1
04L
389
2bbl
AT
230 @ ?
?
4.063 x 3.75
8.6:1
05L
389
2bbl
AT
230 @ ?
?
4.063 x 3.75
8.6:1
08R
389
2bbl
AT
230 @ ?
?
4.063 x 3.75
8.6:1
09R
389
2bbl
AT
230 @ ?
?
4.063 x 3.75
8.6:1
10A
389
2bbl
MT 3spd
283 @ 4400
418 @ 2800
4.063 x 3.75
10.5:1
11H
389
2bbl
AT
267 @ ?
?
4.063 x 3.75
10.5:1
12H
389
2bbl
AT
267 @ ?
?
4.063 x 3.75
10.5:1
17M
389
2bbl
AT
283 @ 4400
418 @ 2800
4.063 x 3.75
10.5:1
18M
389
2bbl AC
AT
283 @ 4400
418 @ 2800
4.063 x 3.75
10.5:1
22B
389
4bbl
MT 3spd
235 @ ?
?
4.063 x 3.75
8.6:1
23B
389
4bbl
MT 3spd
306 @ ?
?
4.063 x 3.75
10.5:1
25K
389
4bbl
AT
303 @ 4600
430 @ 2800
4.063 x 3.75
10.5:1
26K
389
4bbl AC
AT
303 @ 4600
430 @ 2800
4.063 x 3.75
10.5:1
27P
389
4bbl
AT
303 @ 4600
430 @ 2800
4.063 x 3.75
10.5:1
28P
389
4bbl AC
AT
303 @ 4600
430 @ 2800
4.063 x 3.75
10.5:1
29N
389
4bbl
AT
306 @ ?
?
4.063 x 3.75
10.5:1
32B
389
3x2bbl
MT 3spd
350 @ ?
?
4.063 x 3.75
10.75:1
336
389
3x2bbl
AT
350 @ ?
?
4.063 x 3.75
10.75:1
34N
389
3x2bbl
AT
350 @ ?
?
4.063 x 3.75
10.75:1
35B
421
4bbl
MT 3spd
320 @ 4000
455 @ 2800
4.097 x 4.0
10.5:1
38S
421
4bbl
AT
320 @ 4000
455 @ 2800
4.097 x 4.0
10.5:1
43N
421
4bbl
AT
320 @ 4000
455 @ 2800
4.097 x 4.0
10.5:1
44B
421
3x2bbl
MT 3spd
350 @ ?
?
4.097 x 4.0
10.75:1
H.O.
45B
421
3x2bbl
MT 3spd
370 @ 5200
460 @ 3800
4.097 x 4.0
10.75:1
H.O.
46G
421
3x2bbl
AT
370 @ 5200
460 @ 3800
4.097 x 4.0
10.75:1
47S
421
3x2bbl
AT
350 @ ?
?
4.097 x 4.0
10.75:1
49N
421
3x2bbl
AT
350 @ ?
?
4.097 x 4.0
10.75:1
H.O.
50Q
421
3x2bbl
AT
370 @ 5200
460 @ 3800
4.097 x 4.0
10.75:1
1
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