All engines are stamped with an engine ID code, consisting of assembly plant
code, production date and suffix code. V8 codes are stamped on a pad just forward
of the right side (passenger) cylinder head. 6 cylinder engines are stamped
on the passenger side of the block behind the distributor. The block casting
number on small block and big block Chevy V-8 engine's are located on the ledge
found at the rear of the block, most often on the driver's side. This ledge
forms the mating surface between the block and the transmission bell housing.
These particular codes designate the specific powerplant that was installed
in the vehicle at the factory. Note, this is a general reference.
|
|
|
Code |
Power plant |
Equipment |
AM |
230-140 HP |
Manual Transmission |
AP |
230-140 HP |
Manual Transmission & A/C |
AN |
230-140 HP |
Powerglide or Torquedrive Automatic |
AD |
230-140 HP |
Turbohydramatic Automatic |
AQ |
230-140 HP |
Powerglide or Torquedrive & A/C |
AR |
230-140 HP |
Turbohydramatic & A/C |
BE |
250-155 HP |
Manual Transmission |
BF |
250-155 HP |
Manual Transmission & A/C |
BB |
250-155 HP |
Powerglide or Torquedrive Automatic |
BC |
250-155 HP |
Powerglide or Torquedrive & A/C |
BD |
250-155 HP |
Turbohydramatic Automatic |
BH |
250-155 HP |
Turbohydramatic & A/C |
DA |
307-200 HP |
3 or 4 Speed Manual Transmission |
DE |
307-200 HP |
4-Speed Manual Transmission |
DC |
307-200 HP |
Powerglide Automatic |
DD |
307-200 HP |
350 Turbohydramatic Automatic |
HC |
350-250 HP |
Manual Transmission |
HF |
350-250 HP |
Powerglide Automatic |
HD |
350-250 HP |
350 Turbohydramatic Automatic |
HQ |
350-255 HP |
3 or 4 Speed Manual Transmission |
HR |
350-255 HP |
Powerglide Automatic |
HS |
350-255 HP |
350 Turbohydramatic Automatic |
HA |
350-300 HP |
3 or 4 Speed Manual Transmission |
HP |
350-300 HP |
Heavy Duty Clutch |
HE |
350-300 HP |
Powerglide Automatic |
HB |
350-300 HP |
350 Turbohydramatic Automatic |
JA |
396-325 HP |
3 or 4 Speed Manual Transmission |
JK |
396-325 HP |
400 Turbohydramatic Automatic |
JV |
396-325 HP |
Heavy Duty Clutch |
JC |
396-350 HP |
Manual Transmission |
JE |
396-350 HP |
400 Turbohydramatic Automatic |
KB |
396-350 HP |
Heavy Duty Clutch |
JD |
396-375 HP |
Manual Transmission |
KF |
396-375 HP |
400 Turbohydramatic Automatic |
KD |
396-375 HP |
Heavy Duty Clutch |
KG |
396-375 HP |
Aluminum Cylinder Heads & Manual Transmission
(note L89) |
KH |
396-375 HP |
Aluminum Cylinder Heads & 400 Turbohydramatic
(note L89) |
KI |
396-375 HP |
Aluminum Cylinder Heads & Heavy Duty Clutch (note
L89) |
CJA |
402-325HP |
Manual Transmission |
CJK |
402-325HP |
400 Turbohydramatic Automatic |
CJV |
402-325HP |
3 or 4-Speed Manual Transmission |
CJC |
402-350 HP |
Manual Transmission |
CJE |
402-350 HP |
400 Turbohydramatic Automatic |
CKB |
402-350 HP |
3 or 4-Speed Manual Transmission |
CJD |
402-375 HP |
Manual Transmission |
CJF |
402-375 HP |
400 Turbohydramatic Automatic |
CKD |
402-375 HP |
Manual Transmission |
CKF |
402-375 HP |
400 Turbohydramatic Automatic |
CKG |
402-375 HP |
Manual Transmission (note L89) |
CKH |
402-375 HP |
400 Turbohydramatic Automatic (note L89) |
CKI |
402-375 HP |
3 or 4-Speed Manual Transmission (note L89) |
MQ |
427-425 HP |
Manual Transmission (note COPO) |
MP |
427-425 HP |
Turbohydramatic Automatic (note COPO) |
