ENGINE CODES
BUICK
1960
Code Prefix
1
1961
Code Prefix
1
210hp, 8.5:1, 2brl
155hp, 8.8:1, 2brl
235hp, 9:1, 2brl
185hp, 10.25:1, 4brl
250hp, 10.25:1, 2brl
7.6:1, 2brl
300hp, 10.25:1, 4brl
250hp, 10.25:1, 2brl
325hp, 10.25:1, 4brl
300hp, 10.25:1, 2brl
3235hp, 9:1, 2brl
325hp, 10.25:1, 4brl
325hp, 8.75:1, 4brl
1962
1963
135hp, 8.8:1, 2brl
135hp, 8.8:1, 2brl
155hp, 9:1, 2brl
135hp, 8.8:1, 2brl
190hp, 11:1, 4brl
155hp, 9:1, 2brl
145hp, 7.6:1, 2brl
200hp, 11:1, 4brl
280hp, 10.25:1, 2brl
145hp, 7.7:1, 2brl
265hp, 9:1, 2brl
280HP, 10.25:1, 2brl
325hp, 10.25:1, 4brl
265hp, 9:1, 2brl
315hp, 8.75:1, 4brl
325hp, 10.25:1, 4brl
315hp, 8.75:1, 4brl
340hp, 10.25:1, 4brl
1964
1965
155hp, 9:1, 1brl
155hp, 9:1, 1brl
7.6:1, 1brl
7.6:1, 1brl
210hp, 9:1, 2brl
210hp, 9:1, 2brl
7.6:1, 2brl
8.75:1, 2brl
250hp, 11:1, 4brl
250hp, 10.25:1, 4brl
4brl
325hp, 10.25:1, 4brl
325hp, 10.25:1, 4brl
325hp, 10.25:1, 4brl
325hp, 8.75:1, 4brl
8.75:1, 4brl
340hp, 10.25:1, 4brl
340hp, 10.25:1, 4brl
360hp, 10.25:1, 2- 4brls
360hp, 10.25:1, 2- 4brls
1966
1967
160hp, 9:1, 2brl
160hp, 9:1, 2brls
7.6:1, 2brl
210hp, 9:1, 2brls
210hp, 9:1, 2brl
7.6:1, 2brls
7.6:1, 2brl
220hp, 9:1, 2brl
220hp, 9:1, 2brl
260hp, 10.25:1, 4brl
260hp, 10.25:1, 4brl
8.1:1, 4brl
7.6:1, 2brl
340hp, 10.25:1, 4brl
325hp, 10.25:1, 4brl
360hp, 10.25:1, 4brl
325hp, 10.25:1, 4brl
8.75:1, 4brl
8.75:1, 4brl
340hp, 10.25:1, 4brl
360hp, 10.25:1, 2- 4brls
1968
1969
155hp, 8.5:1, 2brl
N/A
155hp, 8.5:1, 2brl
N/A
230hp, 9:1, 2brl
230hp, 9:1, 2brl
7.6:1, 2brl
8:1, 2brl
280hp, 10.25:1, 4brl
280hp, 10.25:1, 4brl
340hp, 10.25:1, 4brl
340hp, 10.25:1, 4brl
360hp, 10.25:1, 4brl
360hp, 10.25:1, 4brl
8.75:1, 4brl
360hp, 8.75:1, 4brl
1970
2
1971
2
155hp, 8.5:1, 1brl
145hp, 8.5:1, 1brl
285hp, 9:1, 4brl
155hp, 8.5:1, 1brl
260hp, 9:1 2brl
230hp, 8.5:1 2brl
315hp, 10.25:1 4brl
260hp, 8.5:1, 4brl
370hp, 10.5:1 4brl
335hp, 8.5:1, 4brl
350hp, 10:1 4brl
310hp, 8.5:1, 4brl
360hp, 10.5:1 4brl
345hp, 8.5:1, 4brl
3
1972
2
1973
2
155hp, 8.5:1, 2brl
100hp, 8.2:1, 1brl
175hp, 8.5:1, 4brl
100hp, 8.2:1, 1brl
150hp, 8.5:1, 2brl
150hp,8.5:1, 2brl
180hp, 8.5:1, 4brl
175hp, 8.5:1, 4brl
190hp, 8.5:1, 4brl
Dual Exh.
190hp, 8.5:1, 4brl
Dual Exh.
225hp, 8.5:1, 4brl
225hp, 8.5:1, 4brl
250hp, 8.5:1, 4brl
Dual Exh.
250hp, 8.5:1, 4brl
Dual Exh.
270hp, 8.5:1, 4brl
3
260hp, 8.5:1, 4brl
270hp, 8.5:1, 4brl
4
270hp, 8.5:1, 4brl
3
1974
2
1975 *
2
100hp, 8.2:1, 1brl
5
,
CCX110hp, 8:1, 2brl
100hp, 8.2:1, 1brl
105hp, 8.25:1, 1brl
150hp, 8.5:1, 2brl
5
110hp, 8.5:1, 2brl
175hp, 8.5:1, 4brl
5
110hp, 8.5:1, 2brl
6
175hp, 8.5:1, 2brl
110hp, 8.5:1, 2brl
190hp, 8.5:1, 2brl
Dual Exh.
110hp, 8.5:1, 2brl
5
210hp, 8.5:1, 4brl
145hp, 8:1, 2brl
230hp, 8.5:1, 4brl
Dual Exh.
165hp, 8:1, 4brl
255hp, 8.5:1, 4brl
4
205hp, 7.9:1, 4brl
245hp, 8.5:1, 4brl
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.