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Transmission Codes
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Transmission identification may be determined by finding the transmission application code in the following tables. The
transmission codes are found on the Protect-O-Plate and in the following locations:
Muncie 3-speed = on the boss above the filler plug
Muncie 4-speed = on the right side of the case at the right side of the cover flange
Saginaw 3- and 4-speed = on the lower right side of the case next to the rear cover
Powerglide = on the upper flange of the transmission housing converter opening
Torque Drive = on the upper flange of the transmission housing converter opening
TH200 = tag on the right side of the transmission extension
TH350 (1972 and earlier)= on the upper flange of the transmission housing converter opening
TH350 (1973 and later) = on the right vertical surface of the oil pan
TH400 = on the upper flange of the transmission housing converter opening
The codes on this page are not limited to Novas only. They cover all Chevrolet.
The codes have been compiled from many sources to make this page as correct as possible. There is no guarantee that
the codes are complete or accurate, therefore, I cannot accept any liability or responsibility for damages incurred
from the use of this information. It is my intention to help you as much as possible in deciphering your Novas engine
code.
Good Luck and Happy Motoring!
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Transmission Aplication Codes
1966 and earlier code example: C1012D
| Plant Code / Trans Type
| Assembly Month
| Assembly Day
| Assembly Shift
| Muncie Suffix
A = Cleveland / Torque Drive
B = Cleveland / TH350 (1971-78)
B = Parma / TH350 (1979)
C = Cleveland / Powerglide
D = Parma / TH350
E = McKinnon / Powerglide
H = Muncie / 3-speed
K = McKinnon / 3-speed
M = Muncie / 3-speed
N = Muncie / 4-speed
O = Saginaw / Overdrive
P = Muncie / 4-speed M20, M21, M22
R = Saginaw / 4-speed (1964-69)
R = Muncie / 4-speed (1979)
S = Saginaw / 3-speed (1962-70)
S = Muncie / 3-speed (1971-79)
T = Toledo / Powerglide
W = Warner / 3-speed, Heavy Duty
X = Cleveland / TH350
Y = Cleveland / TH350
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1 = January
2 = February
3 = March
4 = April
5 = May
6 = June
7 = July
8 = August
9 = September
10 = October
11 = November
12 = December
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01 = 1st
02 = 2nd
03 = 3rd
04 = 4th
05 = 5th
06 = 6th
07 = 7th
08 = 8th
09 = 9th
10 = 10th
etc...
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D = Day
N = Night
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A = M20
B = M21
C = M22
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1967 and later code example: C8A10D
| Plant Code / Trans Type
| Year
| Assembly Month
| Assembly Day
| Assembly Shift
| Muncie Suffix
A = Cleveland / Torque Drive
B = Cleveland / TH350 (1971-78)
B = Parma / TH350 (1979)
C = Cleveland / Powerglide
D = Parma / TH350
E = McKinnon / Powerglide
H = Muncie / 3-speed
K = McKinnon / 3-speed
M = Muncie / 3-speed
N = Muncie / 4-speed
O = Saginaw / Overdrive
P = Muncie / 4-speed M20, M21, M22
R = Saginaw / 4-speed (1964-69)
R = Muncie / 4-speed (1979)
S = Saginaw / 3-speed (1962-70)
S = Muncie / 3-speed (1971-79)
T = Toledo / Powerglide
W = Warner / 3-speed, Heavy Duty
X = Cleveland / TH350
Y = Cleveland / TH350
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7 = 1967, 1977
8 = 1968, 1978
9 = 1969, 1979
0 = 1970
1 = 1971
2 = 1972
3 = 1973
4 = 1974
5 = 1975
6 = 1976
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A = January
B = February
C = March
D = April
E = May
H = June
K = July
M = August
P = September
R = October
S = November
T = December
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01 = 1st
02 = 2nd
03 = 3rd
04 = 4th
05 = 5th
06 = 6th
07 = 7th
08 = 8th
09 = 9th
10 = 10th
etc...
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D = Day
N = Night
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A = M20
B = M21
C = M22
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TH400 example: 68CA375
| Year
| Engines / (Horsepower)
| Assembly Date (Julian)
65 = 1965
66 = 1966
67 = 1967
68 = 1968
69 = 1969
70 = 1970
71 = 1971
72 = 1972
73 = 1973
74 = 1974
75 = 1975
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CA = 350, 396, 400 / (265, 325)
CB = 427, 454 / (390)
CC = 396 / (325)
CD = 327, 350, 400, 402 / (235, 250)
CE = 396 / (350)
CF = 402, 427, 454 / (335)
CG = 396, 454 / (265)
CH = 396, 427 / (390)
CJ = 396, 402, Truck 1/2- and 3/4-ton / (310)
CK = 327, 350 / (300) Corvette
CL = 427 / (400) Corvette
CM = 307
CP = Truck 1-ton
CQ = 427 / (335)
CR = 454
CS = 454
CT = Truck 1/2- and 3/4-ton
CW = 402
CX = 396, 427 / (375, 425, 430, 435 & COPO)
CY = 350, 396, 427, 454 / (245, 255, 425, 450)
CZ = 350 / (L-82)
Some codes may have a leading 'C' deleted.
example: 68A375
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The Julian date starts January 1 of the previous year. A 1968 date of 375 would be January 10,
1968.
375 - 365 = 10 | |
1968
| Code
| Description
| Engines
| Assembly Plant
| QP | 3-speed | L4 | S = Saganaw |
| QB | 3-speed | L4, L6 | S = Saganaw |
| HI | 4-speed | V8 | P = Muncie |
| R = Saganaw |
| YT | Powerglide | L4 | C = Cleveland |
| T = Toledo |
| TB | Powerglide | L6 | C = Cleveland |
| T = Toledo |
| UE | Powerglide | V8 | C = Cleveland |
| T = Toledo |
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1969
| Code
| Description
| Engines
| Assembly Plant
| QP | 3-speed | L4 | S = Saganaw |
| QB | 3-speed | L4, L6 | S = Saganaw |
| HU | 4-speed | V8 | P = Muncie |
| R = Saganaw |
| IE | Torque Drive | L4 | A = Cleveland |
| IC | Torque Drive | L6 | A = Cleveland |
| YT | Powerglide | L4 | C = Cleveland |
| T = Toledo |
| VE | Powerglide | L6 | C = Cleveland |
| T = Toledo |
| UE | Powerglide | V8 | C = Cleveland |
| T = Toledo |
| IS | TH350 | L6 | X = Cleveland |
| Y = Toledo |
| IT | TH350 | V8 | X = Cleveland |
| Y = Toledo |
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1970
| Code
| Description
| Engines
| Assembly Plant
| RR | 3-speed | all | M = Muncie |
| WA | 4-speed | V8 | P = Muncie |
| UL | Torque Drive | L4, L6 | A = Cleveland |
| VE | Powerglide | L6 | C = Cleveland |
| T = Toledo |
| UE | Powerglide | V8 | C = Cleveland |
| T = Toledo |
| GN | TH350 | L6 | X = Cleveland |
| Y = Toledo |
| GS | TH350 | V8 | X = Cleveland |
| Y = Toledo |
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1971
| Code
| Description
| Engines
| Assembly Plant
| R3 | 3-speed | L6, V8 | S = Muncie |
| WT | 4-speed | V8 | P = Muncie |
| TL | Torque Drive | L6 | A = Cleveland |
| TH | Powerglide | L6 | C = Cleveland |
| E = McKinnon |
| TJ | Powerglide | V8 | C = Cleveland |
| E = McKinnon |
| HW | TH350 | V8 | B = Cleveland |
| Y = Toledo |
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1972
| Code
| Description
| Engines
| Assembly Plant
| R3 | 3-speed | L6, V8 | S = Muncie |
| WC | 4-speed | V8 | P = Muncie |
| RB | Powerglide | L6 | C = Cleveland |
| RK | Powerglide | V8 | C = Cleveland |
| SB | TH350 | V8 | B = Cleveland |
| Y = Toledo |
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1973
| Code
| Description
| Engines
| Assembly Plant
| TM | 3-speed | L6, V8 | S = Muncie |
| WC | 4-speed | V8 | P = Muncie |
| TR | Powerglide | L6 | C = Cleveland |
| FA | TH350 | V8 | B = Cleveland |
| Y = Toledo |
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1974
| Code
| Description
| Engines
| Assembly Plant
| TM | 3-speed | L6, V8 | S = Muncie |
| WC | 4-speed | V8 | P = Muncie |
| TT | TH350 | L6 | B = Cleveland |
| TH | TH350 | V8 | Y = Toledo |
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1975
| Code
| Description
| Engines
| Assembly Plant
| CH | 3-speed | L6, V8 | S = Muncie |
| WC | 4-speed | V8 | P = Muncie |
| TZ | TH350 | L6 | B = Cleveland |
| YA | TH350 | V8 | Y = Toledo |
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1976
| Code
| Description
| Engines
| Assembly Plant
| UX | 3-speed | L6, V8 | S = Muncie |
| UF | 4-speed | V8 | P = Muncie |
| TK | TH350 | L6 | D = Parma |
| XE | TH350 | V8 | Y = Toledo |
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1977
| Code
| Description
| Engines
| Assembly Plant
| ZC | 3-speed | L6, V8 | S = Muncie |
| ZM | 4-speed | V8 | P = Muncie |
| WK | TH350 | L6 | D = Parma |
| AG | TH350 | V8 | Y = Toledo |
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1978
| Code
| Description
| Engines
| Assembly Plant
| UR | 3-speed | L6, V8 | S = Muncie |
| ZM | 4-speed | V8 | P = Muncie |
| 5WZ | TH350 | L6 | D = Parma |
| AG | TH350 | V8 | Y = Toledo |
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1979
| Code
| Description
| Engines
| Assembly Plant
| SF | 3-speed | L6, V8 | S = Muncie |
| SR | 4-speed | V8 | R = Muncie |
| 6TC | TH350 | L6 | B = Parma |
| 6TA | TH350 | V8 | Y = Toledo |
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Copyright © 2000 Scott Windle |
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Created on: 05/09/00 |
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