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ENGINE CODES

 
1970-75

CHEVROLET

 
1962
Code Prefix
1962 - 63
Code Prefix
6 Cyl.
3 sp. trans, A/C, HDC
AJ 8-283
O/D
CD
6 Cyl.
3 sp. trans, A/C
AK 8-283
A/C
CL
6 Cly.
HDC, P/S
AM 8-283
A/C, P/G
DK
6 Cly.
P/S, A/C
AZ 8-409
4 Bar carb
QA
6 Cly.
P/G, P/S
BE 8-409
2 CARBS
QB
6 Cly.
P/G, A/C
BG    
6Cly.
A/C, P/G, P/S
BH    
1962 - 64
1963
6 Cyl.
3 sp. trans
A 8-327
Std. tran
R
6
Cly., HDC
AE 8-327
Std. tran, A/C
RA
6 Cyl.
3 sp. trans, A/C
AF 8-327
Std. tran, HPE
RB
6 Cyl.
A/C, HDC
AG 8-327
Std. tran, HPE, A/C
RK
6
Cly., P/G
B 8-327
P/G
S
8-283
3 sp. tran
C 8-327
A/C, P/G
SA
8-283
P/G
D 8-327
HPE, PG
SB
1963 - 64
8-327
A/C. HPE, P/G
SG
8-283
Police
CB 8-409
M/T
QC
1964
8-409
P/G
QG
6 Cly.
P/G, A/C
BQ 8-409
SHPE
QM
1965
1965 - 66
8-327
P/G, HPE
HD 8-327
3 sp, HPE
HB
8-396
M/T, T/I
IC
1965 - 67
8-396
SHPE, M/T
IE 6 Cyl.
3 sp. trans
FA
8-396
P/G, T/I
II 6
Cly., HDC
FE
8-396
T/H, T/I
IW 6
Cly., HDC, A/C
FF
8-409
M/T, HPE
JA 6
Cly.
TAXI
FK
8-409
M/T
JB 6 Cyl.
3 sp. trans, A/C
FL
8-409
T/I
JC 6 Cyl.
P/G
FM
8-409
T/I, HPE
JD 6 Cyl.
TAXI
FP
8-409
P/G
JE 6 Cyl.
P/G, A/C
FR
8-409
P/G, T/I
JF 8-283
3 sp. trans
GA
1965 - 68
8-283
4 sp. trans
GC
8-327
3 sp. trans
HA 8-283
P/G
GF
8-327
P/G
HC 8-396
A.I.R
IB
8-396
M/T
IA
1966 - 67
8-396
P/G
IG 6 Cly.
A.I.R
FV
8-396
T/H
IV 6 Cly.
A.I.R, A/C
FY
1966
6 Cly.
A.I.R, TAXI
FZ
6
Cly.
A.I.R, HDC
FW 6 Cly.
A.I.R, P/G
GP
6 Cly.
A.I.R, HDC, A/C
AN 6 Cly.
A.I.R, P/G, A/C
GQ
1966 - 68
6 Cly.
A.I.R, P/G, TAXI
GR
8-327
SHPE
ID 8-283
A.I.R
GK
8-427
M/T
IH 8-283
4 sp., A.I.R
GS
1967
8-283
A.I.R, P/G
GT
8-283
HDC
GU 8-327
A.I.R, P/G
HF
8-327
A.I.R
HB 8-396
A.I.R, P/G
IC
8-327
4 sp.
KE 8-427
A.I.R
II
8-396
A.I.R, T/H
IN 8-427
T/H
IJ
8-427
A.I.R, T/H
IO
1969
1968
6-250
Std. tran
BA
6-250
Std. tran
CA 6-250
Std. tran, A/C
BG
6-250
A/C
CC 8-327
Std. tran
FA
6-250
HDC
CJ 8-327
P/G
FB
6-250
A/C, HDC
CK 8-327
T/H
FC
6-250
Std. tran
CM 8-327
T/H
FH
6-250
A/C
CN 8-350
Std. tran
HG
6-250
P/G
CQ 8-350
T/H
HH
6-250
A/C, P/G
CR 8-350
2 Bar carb
HI
8-307
Std. tran
DO 8-350
2 Bar carb, T/H
HJ
8-307
4 sp. tran S.S
DP 8-350
P/G
HK
8-307
HDC
DQ 8-350
2 Bar carb, P/G
HL
8-307
P/G
DR 8-350
2 Bar carb, T/H
HM
8-307
T/H
DS 8-350
T/H
HN
8-327
HDC
HB 8-396
2 Bar carb
JN
8-327
T/H
HF 8-396
2 Bar carb, T/H
JQ
8-327
4 Bar carb
HI 8-427
HPE
LA
8-327
4 Bar carb, P/G
HJ 8-427
4 Bar carb
LB
8-327
4 Bar carb, HDC
HL 8-427
HPE, T/H
LC
8-327
4 Bar carb, T/H
HM 8-427
SHPE
LD
8-427
T/H
IJ 8-427
4 Bar carb, T/H
LE
    8-427
HPE
LH
    8-427
T/H
LI
    8-427
SHPE, T/H
LS
       

Location:

4 & 6 CYL- Righthand side of block, rear of distributor

8 CYL - Front pad on righthand side of block

Configuration:

A/C - Air conditioning

O/D - Overdrive

A/H - Aluminum heads

P/G - Powerglide

A/S - Air spension

P/S - Power steering

A.I.R. - Air Injection Reactor

P/V - Positive crankcase ventilation

A/T - Auto trans

SHPE - Special high perf. eng

E.E.C - Exhaust emission control

F/I - Fuel injection

S.S. - Super Sport

H/D - Heavy duty

T/D - Torque drive

HDC - Heavy duty clutch

T/H - Turbo hydramatic

HPE - High performance engine

H/L - Hydraulic lifters

T/I - Transistor ignition

M/T - Manual trans

 
The engine code decoder reveals the engine displacement, plate location and configuration.