| 
Small Block Chevy Suffix Codes: 3N - CDR
GM body designation. All these are identified here. Quickly, A = Chevelle, F = Camaro, X = Nova. If you're looking at the engine code - this is already known. If you're looking at the casting # information and it mentions 3970010 "A/F/X/Y/B".... basically this means "it's used in everything", whereas if it simply states "Y"... this means Corvette. 
| RPO | 
FY | 
CID | 
Appl | 
VIN | 
HP | 
BBLS | 
Body/Comments | 
 
| 3N | 
1978 | 
305 | 
U LG3 | 
- | 
145 | 
2 | 
Firebird/school bus | 
 
| 3T | 
1978 | 
350 | 
L LM1 | 
- | 
170 | 
4 | 
Firebird/school bus | 
 
| 3X | 
1978 | 
305 | 
U LG3 | 
- | 
145 | 
2 | 
Phoenix/school bus | 
 
| 9A | 
1980 | 
305 | 
H LG4 | 
- | 
155 | 
5 | 
full size/school bus | 
 
| AAA | 
1976 | 
350 | 
m/t | 
LF5 | 
160 | 
2 | 
C-50 & 60/school bus | 
 
| AAB | 
1976 | 
350 | 
m/t | 
LF5 | 
160 | 
2 | 
C-60 | 
 
| AAC | 
1976 | 
350 | 
a/t | 
LF5 | 
160 | 
2 | 
C-60 | 
 
| AAD | 
1975 | 
350 | 
m/t | 
LF5 | 
160 | 
2 | 
C-50 & 60 | 
 
| AAF | 
1976 | 
350 | 
a/t | 
LF5 | 
160 | 
2 | 
C-60 | 
 
| AAH | 
1975 | 
350 | 
m/t | 
LF5 | 
160 | 
2 | 
C-60 | 
 
| AAJ | 
1976 | 
350 | 
a/t | 
LF5 | 
160 | 
2 | 
C-60/school bus | 
 
| AAK | 
1976 | 
350 | 
LF5 | 
- | 
160 | 
2 | 
C-60/school bus | 
 
| AAL | 
1976 | 
350 | 
LF5 | 
- | 
160 | 
2 | 
C-60/school bus | 
 
| AAM | 
1976 | 
350 | 
LF5 | 
- | 
160 | 
2 | 
C-50/school bus | 
 
| ABA | 
1978 | 
350 | 
LF5 | 
- | 
160 | 
2 | 
C-50/school bus/Omega/Monte/Malibu | 
 
| ABB | 
1978 | 
350 | 
LF5 | 
- | 
160 | 
2 | 
C-50/school bus | 
 
| ABC | 
1978 | 
350 | 
LF5 | 
- | 
160 | 
2 | 
C-60/school bus | 
 
| ABD | 
1978 | 
350 | 
LF5 | 
- | 
160 | 
2 | 
C-60/school bus | 
 
| ABF | 
1978 | 
350 | 
LF5 | 
- | 
160 | 
2 | 
C-60 | 
 
| ABH | 
1978 | 
350 | 
LF5 | 
- | 
160 | 
2 | 
C-60/lmpala | 
 
| ABJ | 
1978 | 
350 | 
LF5 | 
- | 
160 | 
2 | 
C-60 | 
 
| ABK | 
1978 | 
350 | 
LF5 | 
- | 
160 | 
2 | 
C-60 | 
 
| ABL | 
1978 | 
350 | 
LF5 | 
- | 
160 | 
2 | 
C-60 | 
 
| ABM | 
1978 | 
350 | 
LF5 | 
- | 
160 | 
2 | 
C-60/school bus | 
 
| ACA | 
1973 | 
350 | 
- | 
- | 
155 | 
2 | 
C-50/school bus | 
 
| ADA | 
1973 | 
350 | 
- | 
- | 
155 | 
2 | 
C-50/school bus | 
 
| ADR | 
1973 | 
350 | 
LPG fuel | 
- | 
155 | 
2 | 
C-60/school bus/Impala | 
 
| AJA | 
1973 | 
350 | 
- | 
- | 
155 | 
2 | 
C-50/lmpala | 
 
| AJD | 
1973 | 
350 | 
- | 
- | 
155 | 
2 | 
C-50/school bus/Monte | 
 
| AJF | 
1973 | 
350 | 
- | 
- | 
155 | 
2 | 
C-60/Omega | 
 
| AJH | 
1973 | 
350 | 
- | 
- | 
155 | 
2 | 
C-50 & 60/school bus/Impala | 
 
| AJJ | 
1973 | 
350 | 
- | 
- | 
155 | 
2 | 
C-60/lmpala | 
 
| AJK | 
1973 | 
350 | 
- | 
- | 
155 | 
2 | 
C-60/Monte | 
 
| AJM | 
1973 | 
350 | 
- | 
- | 
155 | 
2 | 
C-60/Omega | 
 
| AJN | 
1973 | 
350 | 
- | 
- | 
155 | 
2 | 
C-60/Monte | 
 
| AJR | 
1973 | 
350 | 
- | 
- | 
155 | 
2 | 
C-60/Omega | 
 
| AJS | 
1973 | 
350 | 
- | 
- | 
155 | 
2 | 
C-60/Monte | 
 
| AJT | 
1973 | 
350 | 
- | 
- | 
155 | 
2 | 
C-30 & 35 | 
 
| AKH | 
1989 | 
305 | 
L03 | 
E | 
170 | 
TBI | 
Firebird/Monte | 
 
| AKJ | 
1989 | 
305 | 
L03 | 
E | 
170 | 
TBI | 
Firebird | 
 
| ATA | 
1989 | 
305 | 
LB9 | 
F | 
190 | 
TPI | 
Firebird | 
 
| ATB | 
1989 | 
305 | 
LB9 | 
F | 
190 | 
TPI | 
Firebird | 
 
| ATF | 
1989 | 
305 | 
LB9 | 
F | 
190 | 
TPI | 
Firebird | 
 
| ATM | 
1989 | 
305 | 
LB9 | 
F | 
190 | 
TPI | 
Firebird/Omega | 
 
| AWA | 
1989 | 
350 | 
L98, a/t | 
8 | 
225 | 
TPI | 
Firebird | 
 
| AWK | 
1989 | 
350 | 
L98, a/t | 
8 | 
225 | 
TPI | 
Firebird/Omega | 
 
| BD | 
1981 | 
305 | 
LG4 | 
H | 
150 | 
4 | 
Firebird | 
 
| BJ | 
1981 | 
305 | 
LG4 | 
H | 
150 | 
4 | 
Firebird/Omega | 
 
| BLC | 
1990 | 
305 | 
L03 | 
E | 
170 | 
TBI | 
Firebird | 
 
| BLD | 
1990 | 
305 | 
L03 | 
E | 
170 | 
TBI | 
Firebird/trucks/Omega | 
 
| BLF | 
1990 | 
305 | 
LB9 | 
F | 
190 | 
TPI | 
Firebird/trucks | 
 
| BLH | 
1990 | 
305 | 
LB9 | 
F | 
190 | 
TPI | 
Firebird | 
 
| BLJ | 
1990 | 
305 | 
LB9 | 
F | 
190 | 
TPI | 
Firebird | 
 
| BMK | 
1990 | 
350 | 
L98, a/t | 
8 | 
235 | 
TPI | 
Firebird | 
 
| C | 
1957 | 
265 | 
m/t, 3 spd | 
- | 
- | 
- | 
cars/Vette/Omega | 
 
| C | 
1958 | 
283 | 
m/t, 3 spd | 
- | 
185 | 
2 | 
cars | 
 
| C | 
1960 | 
283 | 
m/t | 
- | 
170 | 
2 | 
cars/Omega | 
 
| C2K | 
1977 | 
305 | 
LG3 | 
U | 
145 | 
2 | 
F X | 
 
| C2L | 
1977 | 
305 | 
LG3 | 
U | 
145 | 
2 | 
F X/Omega | 
 
| C2M | 
1977 | 
305 | 
LG3 | 
U | 
145 | 
2 | 
F X | 
 
| C2R | 
1982 | 
305 | 
Roch E4ME carb. | 
H LG4 | 
155 | 
4 | 
B F G/Monte | 
 
| C2S | 
1982 | 
305 | 
Roch E4ME carb. | 
H LG4 | 
155 | 
4 | 
B F G | 
 
| C2T | 
1982 | 
305 | 
Roch E4ME carb. | 
H LG4 | 
155 | 
4 | 
B F G | 
 
| C2U | 
1982 | 
305 | 
Roch E4ME carb. | 
H LG4 | 
155 | 
4 | 
B F G/impala | 
 
| C2W | 
1982 | 
305 | 
Roch E4ME carb. | 
H LG4 | 
155 | 
4 | 
B F G/Monte | 
 
| C2X | 
1982 | 
305 | 
Roch E4ME carb. | 
H LG4 | 
155 | 
4 | 
B F G/Omega | 
 
| C3N | 
1978 | 
305 | 
LG3 | 
U | 
145 | 
2 | 
Camaro/Monte | 
 
| C3P | 
1978 | 
305 | 
LG3 | 
U | 
145 | 
2 | 
G/Omega | 
 
| C3T | 
1978 | 
350 | 
L | 
- | 
- | 
- | 
Camaro | 
 
| C4A | 
1984 | 
305 | 
Roch E4ME carb. | 
H LG4 | 
150 | 
4 | 
B F G/Impala | 
 
| C4B | 
1984 | 
305 | 
Roch E4ME carb. | 
H LG4 | 
150 | 
4 | 
B F G | 
 
| C4C | 
1984 | 
305 | 
Roch E4ME carb. | 
H LG4 | 
150 | 
4 | 
B F G/Omega | 
 
| C4D | 
1984 | 
305 | 
Roch E4ME carb. | 
H LG4 | 
150 | 
4 | 
B F G/Omega | 
 
| C4N | 
1982 | 
267 | 
Roch E2ME carb. | 
J L39 | 
- | 
2 | 
A B/Monte | 
 
| C4P | 
1985 | 
305 | 
Roch E4ME carb. | 
H LG4 | 
150 | 
4 | 
B F/Monte | 
 
| C4R | 
1982 | 
267 | 
Roch E2ME carb. | 
J L39 | 
- | 
2 | 
B G | 
 
| C4R | 
1985 | 
305 | 
Roch E4ME carb. | 
H LG4 | 
150 | 
4 | 
B | 
 
| C4S | 
1982 | 
267 | 
Roch E2ME carb. | 
J L39 | 
- | 
2 | 
B | 
 
| C4T | 
1982 | 
267 | 
Roch E2ME carb. | 
J L39 | 
- | 
2 | 
B G/Omega | 
 
| C4U | 
1982 | 
267 | 
Roch E2ME carb. | 
J L39 | 
- | 
2 | 
B G | 
 
| C4W | 
1982 | 
267 | 
Roch E2ME carb. | 
J L39 | 
- | 
2 | 
B G/Impala | 
 
| C4W | 
1984 | 
305 | 
Roch E4ME carb. | 
H LG4 | 
150 | 
4 | 
F B/Omega | 
 
| C5A | 
1982 | 
350 | 
LM1 | 
L | 
- | 
4 | 
police/Impala | 
 
| C5B | 
1982 | 
350 | 
LM1 | 
L | 
- | 
4 | 
police | 
 
| C5P | 
1985 | 
350 | 
Tuned port inj. | 
6 | 
- | 
- | 
Parisien/Monte | 
 
| C7A | 
1985 | 
305 | 
Roch E4ME carb. | 
H LG4 | 
150 | 
4 | 
B F G/Omega | 
 
| C7B | 
1985 | 
305 | 
Roch E4ME carb. | 
H LG4 | 
150 | 
4 | 
B F G | 
 
| C7D | 
1986 | 
305 | 
Roch E4ME carb. | 
H LG4 | 
150 | 
4 | 
F | 
 
| C7H | 
1986 | 
305 | 
Roch E4ME carb. | 
H LG4 | 
150 | 
4 | 
F | 
 
| C7L | 
1987 | 
305 | 
Roch E4ME carb. | 
H LG4 | 
150 | 
4 | 
F/police/taxi/Monte | 
 
| C7M | 
1987 | 
305 | 
Roch E4ME carb. | 
H LG4 | 
150 | 
4 | 
F/Kingswd | 
 
| C8B | 
1979 | 
305 | 
LG3 | 
G | 
130 | 
2 | 
F X/Impala | 
 
| C8C | 
1979 | 
350 | 
LM1 | 
L | 
- | 
4 | 
F/Monte | 
 
| C8X | 
1980 | 
267 | 
Roch E2ME carb. | 
J L39 | 
- | 
2 | 
F/Monte | 
 
| CAR | 
1972 | 
350 | 
tur 350, Calif emis | 
- | 
165 | 
2 | 
A B | 
 
| CAR | 
1985 | 
305 | 
Roch E4ME carb. | 
H LG4 | 
150 | 
4 | 
F/Monte | 
 
| CAT | 
1972 | 
400 | 
t/h trans, Calif | 
LF6 | 
- | 
2 | 
B | 
 
| CAZ | 
1972 | 
307 | 
Powerglide NB2 | 
- | 
130 | 
2 | 
A F X/Monte | 
 
| CB | 
1958 | 
283 | 
m/t | 
- | 
185 | 
2 | 
truck/1271/Monte | 
 
| CB | 
1963 | 
283 | 
m/t, police, h/p | 
 - | 
- | 
- | 
cars/Monte/impala | 
 
| CBG | 
1971 | 
350 | 
Powerglide | 
- | 
- | 
- | 
full size/Impala | 
 
| CCA | 
1971 | 
307 | 
manual trans. | 
- | 
200 | 
2 | 
A F X | 
 
| CCC | 
1971 | 
307 | 
Powerglide | 
- | 
200 | 
2 | 
A F X/Monte | 
 
| CD | 
1957 | 
265 | 
m/t, 0. D. | 
- | 
- | 
2 | 
car/truck | 
 
| CD | 
1958 | 
283 | 
m/t, 0. D. | 
- | 
185 | 
2 | 
truck/1271/lmpala | 
 
| CDA | 
1972 | 
350 | 
m/t, Calif | 
L65 | 
165 | 
2 | 
A X | 
 
| CDA | 
1981 | 
350 | 
m/t, fed., L81 | 
6 | 
- | 
- | 
Vette/Monte | 
 
| CDB | 
1972 | 
350 | 
Powerglide, Calif | 
L65 | 
- | 
2 | 
A B/Monte | 
 
| CDB | 
1982 | 
267 | 
Roch E2ME carb. | 
J L39 | 
- | 
2 | 
B G | 
 
| CDC | 
1982 | 
267 | 
Roch E2ME carb. | 
J | 
- | 
2 | 
B G/Monte | 
 
| CDD | 
1972 | 
350 | 
t/h NB2 | 
L48 | 
200 | 
- | 
Camaro/Impala | 
 
| CDD | 
1972 | 
350 | 
tur hydro, Calif | 
  | 
175 | 
4 | 
Chevelle | 
 
| CDD | 
1972 | 
350 | 
t/h NB2 | 
  | 
165 | 
2 | 
Monte | 
 
| CDD | 
1982 | 
267 | 
Roch E2ME carb. | 
J | 
- | 
2 | 
B G/Omega | 
 
| CDD | 
1985 | 
305 | 
Roch E4ME carb. | 
H LG4 | 
150 | 
4 | 
B G F | 
 
| CDF | 
1985 | 
305 | 
Roch E4ME carb. | 
H LG4 | 
150 | 
4 | 
B F G/Omega | 
 
| CDG | 
1972 | 
350 | 
m/t NB2 | 
  | 
175 | 
4 | 
Chevelle/SS/Omega | 
 
| CDH | 
1972 | 
350 | 
4 spd, NB2 | 
K | 
200 | 
4 | 
Vette/Omega | 
 
| CDH | 
1985 | 
305 | 
Roch E4ME carb. | 
H LG4 | 
150 | 
4 | 
B F G/Bel Air/Kingswd/Omega | 
 
| CDJ | 
1972 | 
350 | 
base, tur 400, NB2 | 
K | 
200 | 
- | 
Vette/SS | 
 
| CDJ | 
1982 | 
267 | 
Roch E2ME carb. | 
J | 
- | 
2 | 
B G/Bel Air/Kingswd/Monte | 
 
| CDJ | 
1985 | 
305 | 
Roch E4ME carb. | 
H LG4 | 
150 | 
4 | 
B F G/Impala | 
 
| CDK | 
1985 | 
305 | 
HO E4ME carb. | 
G L69 | 
175 | 
4 | 
Z-28[T/A/SS | 
 
| CDL | 
1972 | 
400 | 
t/h trns, pol/taxi | 
LF6 | 
170 | 
2 | 
Caprice | 
 
| CDL | 
1985 | 
305 | 
Roch E4ME carb. | 
H LG4 | 
150 | 
4 | 
B F G/Impala | 
 
| CDM | 
1972 | 
400 | 
t/h, pol/taxi, Calif | 
LF6 | 
170 | 
2 | 
Caprice | 
 
| CDM | 
1985 | 
305 | 
HO E4ME carb. | 
G L69 | 
175 | 
4 | 
Z-28/T/A/SS/Impala | 
 
| CDN | 
1985 | 
305 | 
LB9 | 
F | 
190 | 
TPI | 
Z-28/T/A/B | 
 
| CDR | 
1985 | 
305 | 
LB9 | 
F | 
190 | 
TPI | 
Z-28/T/A/B/Impala | 
 
 
  
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