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ENGINE CODES

 

BUICK

 
1960
Code Prefix
1
1961
Code Prefix
1
V8-364
210hp, 8.5:1, 2brl
3G V8-215
155hp, 8.8:1, 2brl
H
V8-364
235hp, 9:1, 2brl
L3G V8-215
185hp, 10.25:1, 4brl
H
V8-364
250hp, 10.25:1, 2brl
3G V8-215
7.6:1, 2brl
LH
V8-364
300hp, 10.25:1, 4brl
3G V8-364
250hp, 10.25:1, 2brl
3H
V8-401
325hp, 10.25:1, 4brl
4G V8-364
300hp, 10.25:1, 2brl
3H
  V8-364
3235hp, 9:1, 2brl
L3H
V8-401
325hp, 10.25:1, 4brl
4H
V8-401
325hp, 8.75:1, 4brl
L4H
 
1962
1963
V6-198
135hp, 8.8:1, 2brl
6I V6-198
135hp, 8.8:1, 2brl
JL
V8-215
155hp, 9:1, 2brl
I V6-198
135hp, 8.8:1, 2brl
JZ
V8-215
190hp, 11:1, 4brl
HI V8-215
155hp, 9:1, 2brl
JM
V8-215
145hp, 7.6:1, 2brl
LI V8-215
200hp, 11:1, 4brl
JN
V8-401
280hp, 10.25:1, 2brl
2I V8-215
145hp, 7.7:1, 2brl
JP
V8-401
265hp, 9:1, 2brl
L2I V8-401
280HP, 10.25:1, 2brl
JR
V8-401
325hp, 10.25:1, 4brl
4I V8-401
265hp, 9:1, 2brl
JS
V8-401
315hp, 8.75:1, 4brl
L4I V8-401
325hp, 10.25:1, 4brl
JT
  V8-401
315hp, 8.75:1, 4brl
JU
V8-401
340hp, 10.25:1, 4brl
JW
 
1964
1965
V6-225
155hp, 9:1, 1brl
KH V6-225
155hp, 9:1, 1brl
LH
V6-225
7.6:1, 1brl
KJ V6-225
7.6:1, 1brl
LJ
V8-300
210hp, 9:1, 2brl
KL V8-300
210hp, 9:1, 2brl
LL
V8-300
7.6:1, 2brl
KM V8-300
8.75:1, 2brl
LM
V8-300
250hp, 11:1, 4brl
KP V8-300
250hp, 10.25:1, 4brl
LP
V8-300
4brl
KR V8-400
325hp, 10.25:1, 4brl
LR
V8-401
325hp, 10.25:1, 4brl
KT V8-401
325hp, 10.25:1, 4brl
LT
V8-401
325hp, 8.75:1, 4brl
KV V8-401
8.75:1, 4brl
LV
V8-425
340hp, 10.25:1, 4brl
KW V8-425
340hp, 10.25:1, 4brl
LW
V8-425
360hp, 10.25:1, 2- 4brls
KX V8-425
360hp, 10.25:1, 2- 4brls
LX
 
1966
1967
V6-225
160hp, 9:1, 2brl
MH V6-225
160hp, 9:1, 2brls
NH
V6-225
7.6:1, 2brl
MK V8-300
210hp, 9:1, 2brls
NL
V8-300
210hp, 9:1, 2brl
ML V8-300
7.6:1, 2brls
NM
V8-300
7.6:1, 2brl
MM V8-340
220hp, 9:1, 2brl
NA
V8-340
220hp, 9:1, 2brl
MA V8-340
260hp, 10.25:1, 4brl
NB
V8-340
260hp, 10.25:1, 4brl
MB V8-340
8.1:1, 4brl
NX
V8-340
7.6:1, 2brl
MC V8-400
340hp, 10.25:1, 4brl
NR
V8-400
325hp, 10.25:1, 4brl
MR V8-430
360hp, 10.25:1, 4brl
MD, ND
V8-401
325hp, 10.25:1, 4brl
MT V8-430
8.75:1, 4brl
NE
V8-401
8.75:1, 4brl
MV  
V8-425
340hp, 10.25:1, 4brl
MW
V8-425
360hp, 10.25:1, 2- 4brls
MZ
 
1968
1969
6-250
155hp, 8.5:1, 2brl
N/A
6-250
155hp, 8.5:1, 2brl
N/A
V8-350
230hp, 9:1, 2brl
PO V8-350
230hp, 9:1, 2brl
RO
V8-350
7.6:1, 2brl
PW V8-350
8:1, 2brl
RW
V8-350
280hp, 10.25:1, 4brl
PP V8-350
280hp, 10.25:1, 4brl
RP
V8-400
340hp, 10.25:1, 4brl
PR V8-400
340hp, 10.25:1, 4brl
RR, RS, Stage 1
V8-430
360hp, 10.25:1, 4brl
PD V8-430
360hp, 10.25:1, 4brl
RD
V8-430
8.75:1, 4brl
PE V8-430
360hp, 8.75:1, 4brl
RE
 
1970
2
1971
2
6-250
155hp, 8.5:1, 1brl
SA 6-250
145hp, 8.5:1, 1brl
DF
V8-350
285hp, 9:1, 4brl
SB 6-250
155hp, 8.5:1, 1brl
EA
V8-350
260hp, 9:1 2brl
SO V8-350
230hp, 8.5:1 2brl
TC, TO
V8-350
315hp, 10.25:1 4brl
SP V8-350
260hp, 8.5:1, 4brl
TB, TD
V8-455
370hp, 10.5:1 4brl
SF V8-455
335hp, 8.5:1, 4brl
TA
V8-455
350hp, 10:1 4brl
SR V8-455
310hp, 8.5:1, 4brl
TR
V8-455
360hp, 10.5:1 4brl
SS V8-455
345hp, 8.5:1, 4brl
TS
3
 
1972
2
1973
2
V8-350
155hp, 8.5:1, 2brl
WC 6-250
100hp, 8.2:1, 1brl
CCC, CCD
V8-350
175hp, 8.5:1, 4brl
WB 6-250
100hp, 8.2:1, 1brl
CCA, CCB
V8-350
150hp, 8.5:1, 2brl
WC (1) V8-350
150hp,8.5:1, 2brl
XC
V8-350
180hp, 8.5:1, 4brl
WB (1) V8-350
175hp, 8.5:1, 4brl
XB
V8-350
190hp, 8.5:1, 4brl
WB (2)
Dual Exh.
V8-350
190hp, 8.5:1, 4brl
XB
Dual Exh.
V8-455
225hp, 8.5:1, 4brl
WF V8-455
225hp, 8.5:1, 4brl
XF
V8-455
250hp, 8.5:1, 4brl
WF (1)
Dual Exh.
V8-455
250hp, 8.5:1, 4brl
XF
Dual Exh.
V8-455
270hp, 8.5:1, 4brl
WS
3
V8-455
260hp, 8.5:1, 4brl
XS
V8-455
270hp, 8.5:1, 4brl
WA
4
V8-455
270hp, 8.5:1, 4brl
XA
3
 
1974
2
1975 *
2
6-250
100hp, 8.2:1, 1brl
CCW
5
, CCX
V6-231
110hp, 8:1, 2brl
AD
6-250
100hp, 8.2:1, 1brl
CCR 6-250
105hp, 8.25:1, 1brl
D
V8-350
150hp, 8.5:1, 2brl
ZC, ZP
5
V8-260
110hp, 8.5:1, 2brl
QE
V8-350
175hp, 8.5:1, 4brl
ZB, ZM
5
V8-260
110hp, 8.5:1, 2brl
QJ
6
V8-455
175hp, 8.5:1, 2brl
ZI V8-260
110hp, 8.5:1, 2brl
TE
V8-455
190hp, 8.5:1, 2brl
ZH
Dual Exh.
V8-260
110hp, 8.5:1, 2brl
TJ
5
V8-455
210hp, 8.5:1, 4brl
ZF V8-350
145hp, 8:1, 2brl
AB
V8-455
230hp, 8.5:1, 4brl
ZK
Dual Exh.
V8-350
165hp, 8:1, 4brl
AM
V8-455
255hp, 8.5:1, 4brl
ZA
4
V8-455
205hp, 7.9:1, 4brl
AF
V8-455
245hp, 8.5:1, 4brl
ZS
3
   
 

Location:

V6-198 Stamped on front of crankcase below left cyl. Head

V6-225 ,V8-300 , 340 Stamped right side of crankcase, between middle branches of exhaust manifold.

1- " - " 1/4" dash following code indicates .010" oversized cyl bore

2- Has two different codes stamped: Enigine code including build date and engine serial number that matches the VIN.

3-Stage 1

4- Riviera G.S.

5- California emissions standard

6- Federal emissions standard

68-74 V8 350, 400, 430, 455 located on the left bank cylinder head.

V8- 215, 400, 401, 425 is stamped upside down on front of cylinder block.

* Fifth digit in the vin code denotes engine used

 
The engine code decoder reveals the stamp location, engine displacement, horse power, compression ratio, and Carburetor configuration.