Drivetrain ID Number information for the 1967 First Generation Firebird including engine codes, transmission codes, axle codes, carburetor codes, distributor codes, and head casting codes.
1967 Engine Identification Codes
Code | Cyl. | Disp. | H.P. | C.R. | Carb. | Trans. | Description | Qty. Built |
---|---|---|---|---|---|---|---|---|
WI | 8 | 400 | 325 | 10.75:1 | 4 BC | Man. | Firebird 400 Ram Air | |
WC | 8 | 326 | 250 | 9.2:1 | 2 BC | Man. | Firebird 326 | |
WH | 8 | 326 | 250 | 9.2:1 | 2 BC | Man. | Firebird 3261 | |
WK | 8 | 326 | 285 | 10.5:1 | 4 BC | Man. | Firebird H.O. | |
WO | 8 | 326 | 285 | 10.5:1 | 4 BC | Man. | Firebird H.O.1 | |
WQ | 8 | 400 | 325 | 10.75:1 | 4 BC | Man. | Firebird 400 Ram Air1 | |
WU | 8 | 400 | 325 | 10.75:1 | 4 BC | Man. | Firebird 4001 | |
WZ | 8 | 400 | 325 | 10.75:1 | 4 BC | Man. | Firebird 400 | |
XI | 8 | 326 | 250 | 9.2:1 | 2 BC | Auto. | Firebird 3261 | |
XN | 8 | 400 | 325 | 10.75:1 | 4 BC | Auto. | Firebird 400 Ram Air | |
XO | 8 | 326 | 285 | 10.5:1 | 4 BC | Auto. | Firebird H.O.1 | |
YJ | 8 | 326 | 250 | 9.2:1 | 2 BC | Auto. | Firebird 326 | |
YM | 8 | 326 | 285 | 10.5:1 | 4 BC | Auto. | Firebird H.O. | |
YT | 8 | 400 | 325 | 10.75:1 | 4 BC | Auto. | Firebird 400 | |
ZD | 6 | 230 | 215 | 10.5:1 | 4 BC | 3-spd/Man. | Firebird Sprint | |
ZE | 6 | 230 | 215 | 10.5:1 | 4 BC | Auto. | Firebird Sprint | |
ZK | 6 | 230 | 165 | 9.0:1 | 1 BC | 3-spd/Man. | Firebird Standard | |
ZN | 6 | 230 | 165 | 9.0:1 | 1 BC | Auto. | Firebird Standard | |
Engine Identification
V-8: Find code stamped on the block in front of the right bank of cylinders. 6-Cylinder: Find code stamped on cylinder head contact surface of the block behind the oil filler pipe. 123456 = Production Number |
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1 Air Note: Conflicting information for following codes. One source lists them available but have not been able to confirm with other sources: ZF, ZG, ZL, ZM, ZR, ZS. |
Transmission Identification Codes
Code | Description | Engine | Comments | Location |
---|---|---|---|---|
LF | 2-Speed Automatic | 230 | 6 Cyl. – 1 BC, W/O AC | Stamped on low servo cover1 |
LG | 2-Speed Automatic | 230 | Sprint – 4 BC, W/O AC | Stamped on low servo cover1 |
LH | 2-Speed Automatic | 230 | 6 Cyl. – W/AC | Stamped on low servo cover1 |
MA | 2-Speed Automatic | 326 | 2 BC, W/O AC | Stamped on low servo cover1 |
MB | 2-Speed Automatic | 326 | H.O. – 4 BC, W/O AC | Stamped on low servo cover1 |
MC | 2-Speed Automatic | 326 | 326 and H.O. – W/AC | Stamped on low servo cover1 |
PQ | Turbo Hydra-Matic 400 | 400 | W/Ram Air | Stamped on metal tag located on right side of trans.2 |
PR | Turbo Hydra-Matic 400 | 326 | 4 BC | Stamped on metal tag located on right side of trans.2 |
PV | Turbo Hydra-Matic 400 | 326 | 2 BC | Stamped on metal tag located on right side of trans.2 |
PX | Turbo Hydra-Matic 400 | 400 | W/O Ram Air | Stamped on metal tag located on right side of trans.2 |
1 Identifies year, trans. model, and date built (ie: 67LH135) 2 Identifies year, trans. model, and trans. serial (ie: 67PR1234) |
Axle Identification Codes
Code | Ratio | Type |
---|---|---|
UN | 2.56 | Locking |
UP | 2.78 | Locking |
US | 3.08 | Locking |
UT | 3.23 | Locking |
UV | 3.36 | Locking |
UW | 3.55 | Locking |
UX | 3.90 | Locking |
UY | 4.33 | Locking |
XB | 2.56 | |
XC | 2.78 | |
XD | 2.93 | |
XE | 3.08 | |
XF | 3.23 | |
XG | 3.36 | |
XH | 3.55 |
Carburetor Identification Codes
Code | Type | Engine | Comments |
---|---|---|---|
7027071 | 326 | Manual | |
7037071 | 326 | Manual W/AC | |
7027062 | 326 | Automatic | |
7037062 | 326 | Automatic W/AC | |
AFB4243S | Carter | 326 H.O. | Manual |
AFB4245S | Carter | 326 H.O. | Manual W/AC |
AFB4246S | Carter | 326 H.O. | Automatic |
AFB4248S | Carter | 326 H.O. | Automatic W/AC |
7027273 | 400 | Manual | |
7037273 | 400 | Manual W/AC | |
7027277 | 400 | Manual Ram Air | |
7037277 | 400 | Manual Ram Air W/AC | |
7027272 | 400 | Automatic | |
7027276 | 400 | Automatic Ram Air | |
Distributor Identification Codes
Code | Engine | Comments |
---|---|---|
1111164, 1111199 | 326 | |
1111165, 1111238 | 326 HO | |
1111250, 1111252, 1111253, 1111254 |
400 | |
Head Casting Identification Codes
Code | Engine | Comments |
---|---|---|
140 | 326 | |
141 | 326 HO | |
670 | 400 | |
670 | 400 | Ram Air w/air |
670, 97 | 400 | Ram Air |
Content last modified: December 30, 2013 at 8:25 pm