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Engine identification may be determined by finding the engine block VIN and the engine application code in the following
tables. On 4- and 6-cylinder engines, the code is stamped on a pad on the passenger
side of the block to the rear of the distributor and above the fuel pump. V8 engine
codes are stamped on a pad forward of the cylinder head on the passenger side of the block.
Along with the engine code you will find the engine block VIN. Block VIN codes were started as early as 1962, and became
manditory in 1968. Some early blocks may not have the GM division stamped.
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!
Engine Block VIN
EXAMPLE: 18N123456
Digit 1
GM Division
| Digit 2
Year
| Digit 3
Automobile Assembly Plant
| Digits 4 thur 9
Original Vehicle VIN
1 = Chevrolet
2 = Pontiac
3 = Oldsmobile
4 = Buick
5 = GMC Truck
6 = Cadillac
7 = GM of Canada
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1 = 1971
2 = 1962, 1972
3 = 1963, 1973
4 = 1964, 1974
5 = 1965, 1975
6 = 1966, 1976
7 = 1967, 1977
8 = 1968, 1978
9 = 1969, 1979
0 = 1970
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A = Atlanta, GA
B = Baltimore, MD
C = Southgate, CA
D = Doraville, GA
F = Flint, MI
G = Framingham, MA
H = Fremont, CA
J = Janesville, WI
K = Kansas City, MO
L = Los Angeles, CA
N = Norwood, OH
O = Oakland, CA (1953-1964)
O = Oshawa, ON Canada (1965-1969)
P = Pontiac, MI
R = Arlington, VA
S = St Louis, MO
T = Tarrytown, NY
U = Lordstown, OH
V = Pontiac, MI
W = Willow Run, MI
Y = Wilimington, DE
Z = Fremont, CA
1 = Oshawa, ON Canada
2 = St Therese, QU Canada
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These six digits are the last 6 digits of the VIN from the original vehicle.
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Engine Application Codes
EXAMPLE: V0428ZI
Digit 1
Engine Assembly Plant
| Digits 2 and 3
Month
| Digits 4 and 5
Day
| Digits 6 thru 8
Application
F = Flint, MI
H = Hydramatic
K = St. Catherines, ON, Canada
M = GM of Mexico
S = Saginaw
T = Tonawanda, NY
V = Flint, MI
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01 = January
02 = February
03 = March
04 = April
05 = May
06 = June
07 = July
08 = August
09 = 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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These last two or three digits will be the engine application. See below:
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1962 and 1963
4-cylinder
E - 153cid w/3-speed manual
EB - 153cid w/3-speed and HD clutch
EG - 153cid w/Powerglide
EK - 153cid w/3-speed manual (Taxi)
EL - 153cid w/Powerglide (Taxi)
EP - 153cid w/3-speed manual and posi-vent
EQ - 153cid w/Powerglide and posi-vent
ES - 153cid w/3-speed manual and posi-vent (Taxi)
ET - 153cid w/Powerglide and posi-vent (Taxi)
ER - 153cid w/3-speed, HD clutch and posi-vent
6-cylinder
H - 194cid w/3-speed manual
HB - 194cid w/3-speed and HD clutch
HF - 194cid w/Powerglide
HG - 194cid w/Powerglide
HL - 194cid w/3-speed manual (Taxi)
HM - 194cid w/Powerglide (Taxi)
HT - 194cid w/3-speed manual and posi-vent (Taxi)
HU - 194cid w/Powerglide and posi-vent (Taxi)
1964
4-cylinder
E - 153cid w/3-speed manual
EB - 153cid w/3-speed and HD clutch
EG - 153cid w/Powerglide
EK - 153cid w/3-speed manual (Taxi)
EL - 153cid w/Powerglide (Taxi)
EP - 153cid w/3-speed manual and posi-vent
EQ - 153cid w/Powerglide and posi-vent
ES - 153cid w/3-speed manual and posi-vent (Taxi)
ET - 153cid w/Powerglide and posi-vent (Taxi)
ER - 153cid w/3-speed, HD clutch and posi-vent
6-cylinder
BT - 230cid w/Powerglide
BU - 230cid w/Powerglide and posi-vent
H - 194cid w/3-speed manual
HB - 194cid w/3-speed and HD clutch
HF - 194cid w/Powerglide
HG - 194cid w/Powerglide
HL - 194cid w/3-speed manual (Taxi)
HM - 194cid w/Powerglide (Taxi)
HT - 194cid w/3-speed manual and posi-vent (Taxi)
HU - 194cid w/Powerglide and posi-vent (Taxi)
LP - 230cid w/3-speed manual
LR - 230cid w/3-speed manual and posi-vent
8-cylinder
CF - 283cid 2V w/4-speed
CG - 283cid 2V w/4-speed and A/C
CH - 283cid 2V w/3-speed manual
CJ - 283cid 2V w/3-speed manual and A/C
DE - 283cid 2V w/Powerglide
DF - 283cid 2V w/Powerglide and A/C
1965
4-cylinder
OA - 153cid w/3-speed manual
OC - 153cid w/3-speed and HD clutch
OG - 153cid w/3-speed manual (Taxi)
OH - 153cid w/Powerglide
OJ - 153cid w/Powerglide (Taxi)
6-cylinder
OK - 194cid w/3-speed manual
OM - 194cid w/3-speed and HD clutch
ON - 194cid w/3-speed and HD clutch
OQ - 194cid w/3-speed manual (Taxi)
OR - 194cid w/Powerglide
OT - 194cid w/Powerglide (Taxi)
PA - 230cid
PC - 230cid
PI - 230cid
PV - 230cid w/3-speed manual
PX - 230cid w/Powerglide
8-cylinder
PB - 283cid 4V w/Powerglide and A/C
PD - 283cid 2V w/3-speed manual
PE - 283cid 4V w/3-speed
PF - 283cid 2V w/3-speed manual and A/C
PG - 283cid 4V w/3-speed manual and A/C
PK - 283cid 4V w/Powerglide
PL - 283cid 2V w/4-speed
PM - 283cid 2V w/4-speed and A/C
PN - 283cid 2V w/Powerglide
PO - 283cid 4V w/Powerglide
PP - 283cid 2V w/Powerglide and A/C
PQ - 283cid 2V w/Powerglide and A/C
ZA - 327cid 4V (250hp) w/manual
ZB - 327cid 4V (300hp) w/manual
ZE - 327cid 4V (250hp) w/manual and A/C
ZF - 327cid 4V (300hp) w/manual and A/C
ZK - 327cid 4V (250hp) w/Powerglide
ZL - 327cid 4V (300hp) w/Powerglide
ZM - 327cid 4V (250hp) w/Powerglide and A/C
ZN - 327cid 4V (300hp) w/Powerglide and A/C
1966
4-cylinder
OA - 153cid w/3-speed manual
OC - 153cid w/3-speed and HD clutch
OG - 153cid
OH - 153cid w/Powerglide
OJ - 153cid
6-cylinder
OK - 194cid w/3-speed manual
OM - 194cid w/3-speed and HD clutch
ON - 194cid w/3-speed and HD clutch
OQ - 194cid
OR - 194cid w/Powerglide
OS - 194cid w/Powerglide and A.I.R. (Taxi)
OT - 194cid
PC - 230cid w/3-speed manual and A.I.R.
PI - 230cid w/Powerglide and A.I.R.
PV - 230cid w/3-speed manual
PX - 230cid w/Powerglide
ZV - 194cid
ZW - 194cid
ZX - 194cid w/Powerglide and A.I.R.
ZY - 194cid w/3-speed manual and A.I.R.
8-cylinder
PB - 283cid 4V w/Powerglide and A/C
PD - 283cid 2V w/3-speed manual
PE - 283cid 2V w/3-speed and A.I.R.
PF - 283cid 2V w/3-speed manual and A/C
PG - 283cid 2V w/3-speed manual, A.I.R. and A/C
PK - 283cid 4V w/Powerglide
PL - 283cid 2V w/4-speed
PM - 283cid 2V w/4-speed and A/C
PN - 283cid 2V w/Powerglide
PP - 283cid 2V w/Powerglide and A/C
PQ - 283cid 2V w/4-speed and A.I.R.
PS - 283cid 2V w/4-speed, A.I.R. and A/C
PO - 283cid 2V w/Powerglide, A.I.R. and A/C
PU - 283cid 2V w/Powerglide and A.I.R.
QA - 283cid 4V w/manual
QB - 283cid 4V w/manual and A/C
QC - 283cid 4V w/manual and A.I.R.
QD - 283cid 4V w/Powerglide and A.I.R.
QE - 283cid 4V w/Powerglide, A.I.R. and A/C
QF - 283cid 4V w/manual, A.I.R. and A/C
ZA - 327cid 4V (275hp) w/manual
ZB - 327cid 4V (275hp) w/manual and A.I.R.
ZC - 327cid 4V (275hp) w/manual, A.I.R. and A/C
ZD - 327cid 4V (275hp) w/Powerglide and A.I.R.
ZE - 327cid 4V (275hp) w/manual and A/C
ZF - 327cid 4V (275hp) w/Powerglide and A/C
ZG - 327cid 4V (350hp) w/manual and A.I.R. (L79)
ZH - 327cid 4V (350hp) w/manual, A.I.R. and A/C (L79)
ZI - 327cid 4V (350hp) w/manual (L79)
ZJ - 327cid 4V (350hp) w/manual and A/C (L79)
ZK - 327cid 4V (275hp) w/Powerglide
ZM - 327cid 4V (275hp) w/Powerglide and A/C
1967
4-cylinder
OA - 153cid w/3-speed manual
OC - 153cid w/3-speed and HD clutch
OH - 153cid w/Powerglide
6-cylinder
OK - 194cid w/3-speed manual
OM - 194cid w/3-speed and HD clutch
OR - 194cid w/Powerglide
PC - 250cid w/3-speed manual and A.I.R.
PI - 250cid w/Powerglide and A.I.R.
PV - 250cid w/3-speed manual
PX - 250cid w/Powerglide
ZX - 194cid w/Powerglide and A.I.R.
ZY - 194cid w/3-speed manual and A.I.R.
8-cylinder
PD - 283cid 2V w/3-speed manual
PE - 283cid 2V w/3-speed and A.I.R.
PF - 283cid 2V w/3-speed manual and A/C
PL - 283cid 2V w/4-speed
PM - 283cid 2V w/4-speed and A/C
PN - 283cid 2V w/Powerglide
PP - 283cid 2V w/Powerglide and A/C
PQ - 283cid 2V w/4-speed and A.I.R.
PU - 283cid 2V w/Powerglide and A.I.R.
ZA - 327cid (275hp) 4V w/manual
ZB - 327cid (275hp) 4V w/manual and A.I.R.
ZD - 327cid (275hp) 4V w/Powerglide and A.I.R.
ZE - 327cid (275hp) 4V w/manual and A/C
ZG - 327cid (325hp) 4V w/manual and A.I.R. (L79)
ZH - 327cid (325hp) 4V w/manual, A.I.R. and A/C (L79)
ZI - 327cid (325hp) 4V w/manual (L79)
ZJ - 327cid (325hp) 4V w/manual and A/C (L79)
ZK - 327cid (275hp) 4V w/Powerglide
ZM - 327cid (275hp) 4V w/Powerglide and A/C
1968
4-cylinder
OA - 153cid w/3-speed manual
OC - 153cid w/3-speed and HD clutch
OH - 153cid w/Powerglide
6-cylinder
BA - 230cid w/3-speed manual
BB - 230cid w/3-speed manual, HD clutch and A/C
BC - 230cid w/3-speed manual and HD clutch
BD - 230cid w/3-speed manual and A/C
BF - 230cid w/Powerglide
BH - 230cid w/Powerglide and A/C
CM - 250cid w/3-speed manual
CN - 250cid w/3-speed manual and A/C
CQ - 250cid w/Powerglide
CR - 250cid w/Powerglide and A/C
8-cylinder (small block)
DA - 307cid 2V w/3-speed manual
DB - 307cid 2V w/4-speed manual
DE - 307cid 2V w/Powerglide
EA - 327cid 4V w/3-speed manual
EE - 327cid 4V w/Powerglide
EP - 327cid 4V special high performance
MK - 327cid 4V w/manual
ML - 327cid 4V special high performance
MM - 327cid 4V w/Powerglide
MN - 350cid 4V w/Powerglide and A.I.R.
MS - 350cid 4V w/manual
MU - 350cid 4V w/Powerglide
8-cylinder (big block)
MQ - 396cid (375hp) w/manual
MR - 396cid (350hp) w/TH400
MX - 396cid (350hp) w/manual
1969
4-cylinder
AA - 153cid w/3-speed manual
AB - 153cid w/Powerglide or Torque Drive
6-cylinder
AM - 230cid w/3-speed manual
AN - 230cid w/Powerglide or Torque Drive
AO - 230cid w/TH350
AP - 230cid w/3-speed manual and A/C
AQ - 230cid w/Powerglide or Torque Drive and A/C
AR - 230cid w/TH350 and A/C
BB - 250cid w/Powerglide or Torque Drive
BC - 250cid w/Powerglide or Torque Drive and A/C
BD - 250cid w/TH350
BE - 250cid w/3-speed manual
BF - 250cid w/TH350
BG - 250cid w/TH350 and A/C
BH - 250cid w/TH350
8-cylinder (small block)
DA - 307cid 2V w/3-speed manual
DC - 307cid 2V w/Powerglide
DD - 307cid 2V w/TH350
DE - 307cid 2V w/4-speed manual
HA - 350cid 4V w/manual
HB - 350cid 4V w/TH350
HC - 350cid 2V w/manual
HD - 350cid 2V w/TH350
HE - 350cid 4V w/Powerglide
HF - 350cid 2V w/Powerglide
HQ - 350cid 4V w/TH350
HR - 350cid 4V w/Powerglide
HS - 350cid 4V w/TH350
8-cylinder (big block)
JF - 396cid (350hp) w/manual
JH - 396cid (375hp) w/manual
JI - 396cid (350hp) w/TH400
JL - 396cid (375hp) w/TH400
JM - 396cid (375hp) w/TH400 (L89 aluminum heads)
JU - 396cid (375hp) w/Powerglide
KA - 396cid (350hp) w/manual and HD clutch
KC - 396cid (375hp) w/manual and HD clutch
KE - 396cid (375hp) w/manual (L89 aluminum heads)
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1970
4-cylinder
CCA - 153cid w/3-speed manual
CCB - 153cid w/Powerglide
6-cylinder
CAA - 250cid w/3-speed manual
CAB - 250cid w/Powerglide
CCC - 230cid w/3-speed manual
CCD - 230cid w/Torque Drive
CCG - 250cid w/3-speed manual
CCK - 250cid w/TH350 (Taxi/Police)
CCL - 250cid w/3-speed manual (Taxi/Police)
CCM - 250cid w/Powerglide (Taxi/Police)
CCZ - 250cid w/3-speed manual
CRF - 250cid w/3-speed manual
CRG - 250cid w/3-speed manual
8-cylinder (small block)
CCA - 307cid 2V w/3-speed manual
CCC - 307cid 2V w/Powerglide
CGA - 350cid 2V w/3-speed manual
CGB - 350cid 2V w/Powerglide
CGC - 350cid 2V w/TH350
CGK - 350cid 4V w/manual
CGL - 350cid 4V w/TH350
CJD - 350cid 4V w/TH350
CJG - 350cid 4V w/4-speed manual
CNC - 307cid 2V w/3-speed manual
CND - 307cid 2V w/3-speed
CNE - 307cid 2V w/Powerglide
CNF - 307cid 2V w/TH350
CNI - 350cid 2V w/3-speed manual
CNJ - 350cid 4V w/manual
CNK - 350cid 4V w/Powerglide
CNM - 350cid 2V w/Powerglide
CNN - 350cid 2V w/TH350
CRE - 350cid 4V w/TH350
CTB - 350cid 4V w/manual (LT1)
CTC - 350cid 4V w/TH400 (LT1)
8-cylinder (big block)
CKO - 396(402)cid (375hp) w/manual
CKP - 396(402)cid (375hp) w/alum heads and TH400
CKQ - 396(402)cid (375hp) w/manual and HD clutch
CKT - 396(402)cid (375hp) w/alum heads and manual
CKU - 396(402)cid (375hp) w/alum heads, manual and HD clutch
CTW - 396(402)cid (350hp) w/TH400
CTX - 396(402)cid (350hp) w/manual
CTY - 396(402)cid (375hp) w/TH400
CTZ - 396(402)cid (350hp) w/manual and HD clutch
1971
6-cylinder
CAA - 250cid w/3-speed manual
CAB - 250cid w/Powerglide or Torque Drive
CCI - 250cid w/3-speed manual
CCL - 250cid w/3-speed manual
8-cylinder
CCA - 307cid 2V w/3-speed manual
CCC - 307cid 2V w/Powerglide
CGA - 350cid 2V (245hp) w/3-speed manual
CGB - 350cid 2V (245hp) w/Powerglide
CGC - 350cid 2V (245hp) w/TH350
CGK - 350cid 4V (270hp) w/manual
CGL - 350cid 4V (270hp) w/TH350
CJD - 350cid 4V (270hp) w/TH350
CJG - 350cid 4V (270hp) w/4-speed manual
1972
6-cylinder
CAL - 250cid w/3-speed manual (Taxi)
CBA - 250cid w/3-speed manual and NB2
CBG - 250cid w/3-speed manual
CBJ - 250cid w/Powerglide
CBK - 250cid w/Powerglide (Taxi)
CDL - 250cid w/Powerglide and A.I.R.
CDM - 250cid w/3-speed manual and A.I.R.
CSD - 250cid w/Powerglide and NB2
8-cylinder
CAR - 307cid 2V w/manual and NB2
CAY - 307cid 2V w/manual and NB2
CAZ - 307cid 2V w/Powerglide and NB2
CDA - 350cid 2V w/manual
CDD - 350cid 4V w/TH350 and NB2
CDG - 350cid 4V w/manual and NB2
CKA - 350cid 2V w/3-speed manual
CKB - 350cid 2V w/TH350
CKD - 350cid 4V w/TH350
CKG - 307cid 2V w/3-speed manual
CKH - 307cid 2V w/Powerglide
CKK - 350cid 4V w/4-speed manual
CMA - 307cid 2V w/TH350 and NB2
CMD - 350cid 2V w/TH350 and NB2
CRK - 350cid 4V w/TH350 and A.I.R.
CRL - 350cid 4V w/manual and A.I.R.
CTK - 307cid 2V w/TH350
CTL - 350cid 2V w/TH350
1973
6-cylinder
CCA - 250cid w/powerglide
CCB - 250cid w/powerglide and NB2
CCC - 250cid w/3-speed manual and NB2
CCD - 250cid w/3-speed manual
8-cylinder
CHA - 307cid 2V w/TH350
CHB - 307cid 2V w/3-speed manual
CHC - 307cid 2V w/TH350 and NB2
CHD - 307cid 2V w/3-speed manual and NB2
CHH - 307cid 2V w/TH350
CHK - 307cid 2V w/TH350 and NB2
CKA - 350cid 2V w/3-speed manual
CKB - 350cid 4V w/4-speed
CKC - 350cid 2V w/3-speed manual and NB2
CKD - 350cid 4V w/TH350 and NB2
CKH - 350cid 4V w/4-speed and NB2
CKK - 350cid 2V w/TH350 and NB2
CKR - 350cid 4V w/TH350 and NB2
CKU - 350cid 4V w/TH350
CKW - 350cid 2V w/TH350
1974
6-cylinder
CCK - 250cid w/TH350
CCR - 250cid w/3-speed manual
CCW - 250cid w/TH350 and NB2
CCX - 250cid w/TH350
CJA - 250cid w/3-speed manual
CJB - 250cid w/TH350 and NB2
CJC - 250cid w/TH350
8-cylinder
CKB - 350cid 4V (185-hp) w/4-speed manual
CKD - 350cid 4V (160-hp) w/TH350
CKH - 350cid 4V (160-hp) w/3-speed manual and NB2
CKU - 350cid 4V (185-hp) w/TH350
CMA - 350cid 2V w/TH350
CMC - 350cid 2V w/3-speed manual
1975
6-cylinder
CJL - 250cid w/TH350 and NB2
CJM - 250cid
CJR - 250cid
CJS - 250cid
CJT - 250cid w/TH350
CJU - 250cid w/3-speed manual
CJZ - 250cid w/TH350 and NB2
8-cylinder
CHW - 350cid 4V w/TH350
CKL - 262cid 2V
CMU - 350cid 2V w/3-speed manual
CMY - 350cid 2V
CRC - 350cid 4V w/4-speed manual
CRD - 350cid 2V
CRT - 350cid 2V
CRU - 350cid 2V
CRX - 350cid 2V w/TH350
CRZ - 350cid 2V
CUH - 350cid 4V
CUJ - 350cid 4V
CUM - 350cid 4V
CUS - 350cid 4V
CZF - 262cid 2V w/3-speed manual
CZH - 262cid 2V w/TH350
CZJ - 262cid 2V
CZK - 262cid 2V
CZL - 262cid 2V
CZM - 262cid 2V
1976
6-cylinder
CCC - 250cid w/TH200 and NB2
CCD - 250cid w/3-speed manual and NB2
CCF - 250cid w/TH200
CCL - 250cid
CCJ - 250cid
8-cylinder
CHT - 350cid 4V w/4-speed manual
CHU - 350cid 4V w/TH350
CKM - 350cid 4V w/TH350
CML - 350cid 4V w/TH350
CPA - 305cid 2V w/3-speed manual
CPB - 305cid 2V w/TH200
CPC - 305cid 2V
CPJ - 305cid 2V w/TH200 and NB2
1977
6-cylinder
C8Y - 250cid
CCA - 250cid w/TH350
CCC - 250cid w/TH350 and NB2
CCD - 250cid w/3-speed manual
CCF - 250cid w/TH350
CJA - 250cid w/3-speed manual and NB2
8-cylinder
C2K - 305cid 2V
C2L - 305cid 2V
C2M - 305cid 2V
CHX - 350cid 4V w/TH350
CKM - 350cid 4V w/TH350
CKR - 350cid 4V w/TH350 and NB2
CKS - 350cid 4V w/4-speed manual
CPA - 305cid 2V w/3-speed manual
CPC - 305cid 2V w/TH200
CPM - 305cid 2V
CPS - 305cid 2V
CPT - 305cid 2V
CPY - 305cid 2V w/TH200
1978
6-cylinder
C3Y - 250cid
CCH - 250cid w/TH350 and NB2
CCJ - 250cid w/3-speed manual
CCK - 250cid w/TH350
8-cylinder
CHJ - 350cid 4V w/TH350
CHL - 350cid 4V w/TH350
CPJ - 305cid 2V
CTH - 305cid 2V w/4-speed manual
CTJ - 305cid 2V
CTK - 305cid 2V w/TH350 and NB2
CUM - 350cid 4V
CUR - 350cid 4V
CUS - 350cid 4V
1979
6-cylinder
DKA - 250cid w/3-speed manual
DKB - 250cid w/TH350
DKD - 250cid w/TH350 and NB2
8-cylinder
C8B - 305cid 2V w/TH350
DNF - 305cid 2V w/4-speed manual
DNJ - 305cid 2V w/TH350
DRY - 350cid 4V w/TH350
DTM - 305cid 2V w/manual
A/C = Air Conditioning
A.I.R. = Air Injection Reactor
HD = Heavy Duty
NB2 = California emissions control system
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