no quarter - not a Page/Plant/Zep page.
This page copyright 2000 daniel strohl
straight six info
home one two three four
engine codes
Same as with the other figures, these are condensed from a few Chilton's manuals and dont encompass nearly all of the codes out there. Some codes also apply to more than one model or model year.

1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982

1962
Chevy II/Nova
H - 194cid w/3-speed manual
HB - 194cid w/3-speed, heavy duty clutch
HF - 194cid w/Powerglide
HG - 194cid w/Powerglide


1963
Chevy II/Nova
H - 194cid w/3-speed manual
HB - 194cid w/3-speed, heavy duty clutch
HF - 194cid w/Powerglide
HG - 194cid w/Powerglide
HL - 194cid w/3-speed manual (Taxi)
HM - 194cid w/Powerglide (Taxi)

trucks
N - 230cid w/manual trans
ND - 230cid w/Powerglide
NE - 230cid w/manual trans
NE - 230cid w/TH350
PG - 292cid w/manual trans
PK - 292cid w/Powerglide


1964
Chevy II/Nova
BT - 230cid w/Powerglide
BU - 230cid w/Powerglide, PCV
H - 194cid w/manual trans
HB - 194cid w/manual trans, heavy duty clutch
HF - 194cid w/Powerglide
HL - 194cid w/manual trans (taxi)
HM - 194cid w/Powerglide (taxi)
HT - 194cid w/manual trans, PCV (taxi)
HU - 194cid w/Powerglide, PCV (taxi)
LP - 230cid w/3-speed manual
LR - 230cid w/manual trans
OK - 194cid w/3-speed manual
OM - 194cid w/3-speed manual, heavy duty clutch
OQ - 194cid w/3-speed manual (Taxi)
OR - 194cid w/Powerglide
OT - 194cid w/Powerglide (Taxi)
PV - 230cid w/3-speed manual
PX - 230cid w/Powerglide

Chevelle/Malibu
BE - 230cid w/Powerglide
BL - 230cid w/Powerglide
BM - 230cid w/Powerglide, AC
BN - 230cid w/Powerglide, exhaust emissions control
BP - 230cid w/Powerglide, PCV, AC
G - 194cid w/manual trans
GB - 194cid w/manual trans, heavy duty clutch
GF - 194cid w/manual trans
GG - 194cid w/manual trans, heavy duty clutch
GH - 194cid (taxi)
GJ - 194cid w/manual trans
GK - 194cid (taxi)
GK - 194cid AC
GL - 194cid w/manual trans, heavy duty clutch, AC
GM - 194cid AC
GN - 194cid w/manual trans, heavy duty clutch, AC
K - 194cid w/Powerglide
KB - 194cid w/Powerglide
KC - 194cid w/Powerglide (taxi)
KD - 194cid w/Powerglide (taxi)
KH - 194cid w/Powerglide, AC
KJ - 194cid w/Powerglide, AC
LL - 230cid w/manual trans, AC
LM - 230cid w/manual trans
LN - 230cid w/manual trans, AC

Biscayne/Bel Air/Impala/Caprice
A - 230cid w/manual trans
AE - 230cid w/manual trans, heavy duty clutch
AF - 230cid w/manual trans, AC
AG - 230cid w/manual trans, AC, heavy duty clutch
B - 230cid w/Powerglide
BQ - 230cid w/Powerglide, AC

trucks
N - 230cid w/3-speed manual
ND - 230cid w/Powerglide
NE - 230cid w/4-speed HD
PG - 292cid w/manual trans
PK - 292cid w/Powerglide


1965
Chevy II/Nova
LP - 230cid w/manual trans
OK - 194cid w/manual trans
OM - 194cid w/manual trans, heavy duty clutch
ON - 194cid w/3-speed, heavy duty clutch
OQ - 194cid w/manual trans (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

Chevelle/Malibu
AA - 194cid w/manual trans
AC - 194cid w/manual trans, heavy duty clutch
AG - 194cid AC
AH - 194cid w/manual trans, heavy duty clutch, AC
AK - 194cid (taxi)
AL - 194cid w/Powerglide
AN - 194cid w/Powerglide (taxi)
AR - 194cid w/Powerglide, AC
CA - 230cid w/manual trans
CB - 230cid w/manual trans
CC - 230cid w/Powerglide
CD - 230cid w/Powerglide, AC

Biscayne/Bel Air/Impala/Caprice
FA - 230cid w/manual trans
FE - 230cid w/manual trans, heavy duty clutch
FL - 230cid w/manual trans, AC
FF - 230cid w/manual trans, AC, heavy duty clutch
FM - 230cid w/Powerglide
FR - 230cid w/Powerglide, AC
FK - 230cid w/manual trans (taxi)
FP - 230cid w/Powerglide (taxi)

trucks
TA - 230cid w/3-speed manual
TE - 230cid w/Powerglide
TG - 230cid w/4-speed manual
UH - 292cid w/manual trans
UT - 292cid w/Powerglide


1966
ChevyII/Nova
OK - 194cid w/manual trans
OM - 194cid w/manual trans, heavy duty clutch
ON - 194cid w/3-speed, heavy duty clutch
OQ - 194cid
OR - 194cid w/Powerglide
OS - 194cid w/Powerglide, PCV (taxi)
OT - 194cid
PC - 230cid exhaust emissions control
PG - 230cid w/Powerglide, exhaust emission controls
PI - 230cid w/Powerglide, exhaust emission controls
PV - 230cid w/manual trans
PX - 230cid w/Powerglide
ZV - 194cid
ZW - 194cid
ZX - 194cid w/Powerglide, exhaust emissions control
ZY - 194cid exhaust emissions control

Chevelle/Malibu
AA - 194cid w/manual trans
AC - 194cid w/manual trans, heavy duty clutch
AG - 194cid AC
AH - 194cid w/manual trans, heavy duty clutch, AC
AK - 194cid w/manual trans
AL - 194cid w/Powerglide
AN - 194cid w/Powerglide
AR - 194cid w/Powerglide, AC
AS - 194cid exhaust emissions control
AT - 194cid exhaust emissions control, AC
AU - 194cid w/manual trans, exhaust emissions control
AV - 194cid w/manual trans
AW - 194cid w/manual trans, exhaust emissions control
AX - 194cid w/Powerglide, exhaust emissions control
AY - 194cid w/Powerglide, exhaust emissions control, AC
AZ - 194cid w/Powerglide
BL - 230cid w/Powerglide, exhaust emissions control
BM - 230cid w/Powerglide, exhaust emissions control, AC
BN - 230cid exhaust emissions control
BO - 230cid exhaust emissions control, AC
CA - 230cid w/manual trans
CB - 230cid w/manual trans
CC - 230cid w/Powerglide
CD - 230cid w/Powerglide, AC

Biscayne/Bel Air/Impala/Caprice
FA - 250cid w/manual trans
FE - 250cid w/manual trans, heavy duty clutch
FF - 250cid w/manual trans, heavy duty clutch, AC
FK - 250cid w/manual trans (taxi)(police)
FL - 250cid w/manual trans, AC
FM - 230cid w/Powerglide
FP - 250cid w/Powerglide (taxi)(police)
FR - 250cid w/Powerglide, AC
FV - 250cid AC
FY - 250cid exhaust emisssions control
FZ - 250cid exhaust emissions control (taxi)
GP - 250cid w/Powerglide, exhaust emissions control
GQ - 250cid w/Powerglide, AC, exhaust emissions control
GR - 250cid w/Powerglide, exhaust emissions control (taxi)

Olds F-85
F - 250cid 1bbl

Firebird, Tempest - OHC
ZG - 230cid w/auto trans, 1bbl
ZK - 230cid w/manual trans, 1bbl
ZM - 230cid w/auto trans, 1bbl
ZN - 250cid w/auto trans, 1bbl
ZS - 230cid w/manual trans, 1bbl

trucks
TA - 250cid w/manual trans
TE - 250cid w/Powerglide
TF - 250cid w/4-speed HD trans
SV - 250cid emission controls
SW - 250cid w/Powerglide, emission controls
SX - 250cid w/4-speed HD trans
UH - 292cid w/manual trans
UT - 292cid w/Powerglide
VQ - 292cid w/manual trans, emission controls
VR - 292cid w/Powerglide


1967
ChevyII/Nova
OK - 194cid w/3-speed manual
OM - 194cid w/manual trans, heavy duty clutch
OR - 194cid w/Powerglide
PC - 250cid w/manual trans or OD
PI - 250cid w/Powerglide, exhaust emission controls
PL - 250cid w/Powerglide, exhaust emission controls
PV - 230cid w/manual trans
PV - 250cid w/manual trans or OD
PX - 250cid w/Powerglide, exhaust emission controls
ZX - 194cid w/Powerglide, exhaust emission controls
ZY - 194cid exhaust emissions control

Camaro
FB - 250cid (COPO 9627)
FM - 250cid w/Powerglide
FR - 250cid w/Powerglide, AC
GP - 250cid w/Powerglide, exhaust emission controls
GQ - 250cid w/Powerglide, AC, exhaust emission controls
LA - 230cid w/manual trans
LB - 230cid w/manual trans, AC
LC - 250cid w/manual trans, exhaust emission controls
LD - 230cid w/manual trans, AC, exhaust emission controls
LE - 230cid w/Powerglide
LF - 230cid w/Powerglide, AC
LG - 230cid w/Powerglide, AC
LH - 230cid w/Powerglide, AC, exhaust emission controls
LI - 230cid w/manual trans
LK - 230cid
LN - 250cid w/manual trans
LO - 250cid w/manual trans, AC
LP - 250cid w/manual trans, exhaust emission controls
LQ - 250cid w/manual trans, AC, exhaust emission controls
LR - 250cid w/Powerglide
LS - 250cid w/Powerglide
LT - 250cid w/Powerglide
LU - 250cid w/Powerglide

Chevelle/Malibu
BB - 230cid w/manual trans, heavy duty clutch, AC
BC - 230cid w/manual trans, heavy duty clutch
BL - 230cid w/Powerglide, exhaust emissions control
BM - 230cid w/Powerglide, exhaust emissions control
BN - 230cid w/manual trans, exhaust emissions control
BO - 230cid w/manual trans, exhaust emissions control
CA - 230cid w/manual trans
CB - 230cid w/manual trans, AC
CC - 230cid w/Powerglide
CD - 230cid w/Powerglide, AC
CM - 250cid w/manual trans or OD
CN - 250cid w/manual trans, AC
CO - 250cid w/manual trans or OD, exhaust emissions control
CP - 250cid w/manual trans, AC, exhaust emissions control
CQ - 250cid w/Powerglide
CR - 250cid w/Powerglide, AC
CS - 250cid w/Powerglide, exhaust emission controls
CT - 250cid w/Powerglide, exhaust emission controls, AC

Biscayne/Bel Air/Impala/Caprice
FA - 250cid w/manual trans
FE - 250cid w/manual trans, heavy duty clutch
FF - 250cid w/manual trans, heavy duty clutch, AC
FL - 250cid w/manual trans, AC
FM - 250cid w/Powerglide
FR - 250cid w/Powerglide, AC
GP - 250cid w/Powerglide, exhaust emission controls
GQ - 250cid w/Powerglide, AC, exhaust emission controls

Olds F-85
F - 250cid 1bbl

Firebird, Tempest - OHC
ZG - 230cid w/auto trans, 1bbl
ZK - 230cid w/manual trans, 1bbl
ZL - 230cid w/auto trans, 4bbl, exhaust emission controls
ZM - 230cid w/auto trans, 1bbl
ZN - 250cid w/auto trans, 1bbl
ZS - 230cid w/manual trans, 1bbl

trucks
SV - 250cid w/manual trans, emission controls
SW - 250cid w/auto trans, emission controls
SX - 250cid w/4-speed HD trans
TA - 250cid w/manual trans
TC - 250cid w/manual trans
TD - 250cid w/4-speed trans
TE - 250cid w/auto trans
TF - 250cid w/4-speed trans
TS - 250cid w/TH350, emission controls
UH - 292cid w/manual trans
UR - 292cid w/manual trans
UQ - 292cid w/TH350
UT - 292cid w/Powerglide
VQ - 292cid w/manual trans, emission controls
VR - 292cid w/Powerglide


1968
ChevyII/Nova
BA - 230cid w/3-speed manual
BB - 230cid w/manual trans, heavy duty clutch, AC
BC - 230cid w/manual trans, heavy duty clutch
BD - 230cid w/3-speed manual, AC
BF - 230cid w/Powerglide
BH - 230cid w/Powerglide, AC
CB - 250cid w/manual trans or OD
CM - 250cid w/3-speed manual
CN - 250cid w/3-speed manual, AC
CQ - 250cid w/Powerglide, exhaust emission controls
CR - 250cid w/Powerglide, AC

Camaro
BA - 230cid w/3-speed manual
BB - 230cid w/3-speed manual, AC, heavy duty clutch
BC - 230cid air conditioning
BD - 230cid w/3-speed manual, AC
BE - 230cid w/3-speed manual (export)
BF - 230cid w/Powerglide
BH - 230cid w/Powerglide, AC
BL - 230cid (COPO 9801)
BR - 230cid w/Powerglide (export)
CM - 250cid w/3-speed manual
CN - 250cid AC
CQ - 250cid w/Powerglide
CR - 250cid w/Powerglide, AC

Chevelle/Malibu
BA - 230cid w/manual trans
BB - 230cid w/manual trans, heavy duty clutch, AC
BC - 230cid w/manual trans, heavy duty clutch
BD - 230cid w/manual trans
BF - 230cid w/Powerglide
DF - 230cid w/Powerglide
GH - 230cid w/Powerglide
BH - 230cid w/Powerglide, AC
CM - 250cid w/manual trans or OD
CN - 250cid w/manual trans, AC
CQ - 250cid w/Powerglide
CR - 250cid w/Powerglide, AC

Biscayne/Bel Air/Impala/Caprice
CA - 250cid w/manual trans
CJ - 250cid w/manual trans, heavy duty clutch
CK - 250cid w/manual trans, heavy duty clutch, AC
CN - 250cid w/manual trans, AC
CQ - 250cid w/Powerglide
CQ - 250cid w/Powerglide, exhaust emission controls
CR - 250cid w/Powerglide, AC
CR - 250cid w/Powerglide, AC, exhaust emission controls

Olds F-85
VA - 250cid 1bbl
VB - 250cid 1bbl
VE - 250cid 1bbl
VF - 250cid 1bbl

Firebird - OHC
ZK - 250cid w/manual trans
ZN - 250cid w/auto trans
ZD - 250cid w/manual trans, Sprint option
ZE - 250cid w/auto trans, Sprint option

Tempest - OHC
ZK - 250cid w/manual trans
ZN - 250cid w/auto trans
ZO - 250cid w/manual trans, Sprint option
ZE - 250cid w/auto trans, Sprint option

trucks
PC - 250cid w/manual trans
PF - 250cid w/4-speed HD trans
PV - 250cid w/manual trans
PW - 250cid w/3-speed trans
PX - 250cid w/4-speed trans
TA - 250cid w/manual trans
TC - 250cid w/manual trans
TD - 250cid w/manual trans
TE - 250cid w/auto trans
TF - 250cid w/4-speed trans
TL - 250cid w/manual trans
TT - 250cid w/Powerglide
U3 - 292cid w/manual trans
UH - 292cid w/manual trans
UM - 292cid w/manual trans
UN - 292cid w/manual trans
UO - 292cid w/Powerglide
UP - 292cid w/3-speed trans
UQ - 292cid w/3-speed trans
UR - 292cid w/manual trans


1969
ChevyII/Nova
AM - 230cid w/manual trans
AN - 230cid w/torque drive
AN - 230cid w/Powerglide, exhaust emission controls
AO - 230cid w/TH350
AP - 230cid w/AC
AQ - 230cid w/Powerglide, AC
AR - 230cid w/TH350, AC
BB - 250cid w/Powerglide, exhaust emission controls
BB - 250cid w/torque drive
BC - 250cid w/Powerglide, AC
BC - 250cid w/torque drive
BD - 250cid w/TH350
BE - 250cid w/manual trans or OD
BF - 250cid w/AC
BG - 250cid w/TH350, AC
BH - 250cid w/TH350, AC

Camaro
AM - 230cid w/manual trans
AN - 230cid w/Powerglide
AO - 230cid w/TH350
AP - 230cid AC
AQ - 230cid w/Powerglide, AC
AR - 230cid w/TH350, AC
BB - 250cid w/Powerglide
BC - 250cid w/Powerglide, AC
BD - 250cid w/TH350
BE - 250cid w/manual trans
BF - 250cid AC
BH - 250cid w/TH350, AC

Chevelle/Malibu
AD - 230cid w/TH350
AM - 230cid w/manual trans
AN - 230cid w/Powerglide, exhaust emisssion controls
AO - 230cid w/TH350
AP - 230cid w/manual trans, AC
AQ - 230cid w/Powerglide, AC
AR - 230cid w/TH350, AC
BB - 230cid w/manual trans, heavy duty clutch, AC
BB - 250cid w/Powerglide
BC - 230cid w/manual trans, heavy duty clutch
BC - 250cid w/Powerglide, AC
BD - 250cid w/TH350
BE - 250cid w/manual trans or OD
BF - 230cid w/Powerglide
BF - 250cid w/manual trans, AC
BH - 250cid w/TH350, AC

Biscayne/Bel Air/Impala/Caprice
BA - 250cid w/manual trans
BG - 250cid w/manual trans, AC
BJ - 250cid w/Powerglide (taxi)(police)
BL - 250cid w/Powerglide (taxi)(police)
BO - 250cid w/Powerglide, AC
BO - 250cid w/Powerglide, AC, exhaust emission controls
BP - 250cid w/manual trans (taxi)(police)
BQ - 250cid AC

Olds F-85
VA - 250cid 1bbl
VB - 250cid 1bbl
VE - 250cid 1bbl
VF - 250cid 1bbl

Firebird - OHC
ZC - 250cid w/manual trans
ZF - 250cid w/auto trans
ZH - 250cid w/manual trans, 230hp Sprint option
ZL - 250cid w/auto trans, 215hp Sprint option

Tempest - OHC
ZC - 250cid w/manual trans
ZF - 250cid w/auto trans
ZH - 250cid w/manual trans, 230hp Sprint option
ZL - 250cid w/auto trans, 215hp Sprint option

Blazer/Jimmy
PC - 250cid
PD - 250cid
PE - 250cid

trucks
PA - 250cid w/3-speed manual
PB - 250cid w/manual trans
PC - 250cid w/manual trans
PD - 250cid w/TH350
PE - 250cid w/manual trans
PF - 250cid w/3-speed manual
PG - 250cid w/3-speed manual
PH - 250cid w/TH350
PI - 250cid w/manual trans
PJ - 250cid w/manual trans
PK - 250cid w/manual trans
PL - 250cid w/4-speed manual
PN - 250cid w/manual trans
PP - 250cid w/manual trans, emission controls
PQ - 250cid w/manual trans, emission controls
PW - 250cid w/auto trans
PX - 250cid w/auto trans
PY - 250cid w/Powerglide
PZ - 250cid w/4-speed manual
QA - 250cid w/manual trans
RA - 292cid w/Powerglide
RB - 292cid w/TH350
RC - 292cid w/Powerglide
RD - 292cid w/TH350
RE - 292cid w/manual trans
RG - 292cid w/manual trans
RH - 292cid w/manual trans, emission controls
RI - 292cid w/manual trans
RJ - 292cid w/manual trans
RM - 292cid w/Powerglide, emission controls
RN - 292cid w/TH350, emission controls
RV - 292cid w/manual trans, emission controls
SJ - 292cid w/manual trans




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