Factory build sheet
1981 Pontiac Firebird Trans AM
Build 1G2AW87W-B · 5L 8cyl · Rear-wheel drive · Coupe
VIN positions 1 through 8 read 1G2AW87W and position 10 reads B. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.
Every Firebird whose VIN starts 1G2AW87W and carries B in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 43 of them.
- Decoded Jul 7, 2026
- 43 known VINs
- 3 listed for sale now
Factory specification
As filed by Pontiac with NHTSA for this build. Fields the filing does not record are left out entirely — a missing row means no recorded value, not a missing feature.
Engine
- Displacement
- 5 L
- Displacement (CI)
- 301
- Cylinders
- 8
- Configuration
- V-Shaped
- Engine model
- 4BBL
- Fuel type
- Gasoline
Drivetrain
- Drive type
- Rear-wheel drive
Body & chassis
- Body class
- Coupe
- NHTSA body type
- PASSENGER CAR
- Doors
- 2
- Manufacturer
- GENERAL MOTORS LLC
What this build asks today
Asking prices of live dealer listings decoded to this exact configuration — narrower than the trim-level figure, because every car counted here shares the same engine, transmission and drivetrain.
$29,995 median asking price · 5 listings · as of Aug 30, 2026
Too few listings to publish a price range — with 5 cars on the market, the cheapest and the dearest are single cars, not a spread. The median above is what they ask in the middle.
How this VIN pattern is read
A 17-character VIN carries two kinds of information: what was built, and which one it is. This page is the first kind — the nine highlighted positions.
| Positions | Characters | What they encode |
|---|---|---|
| 1–3 | 1G2 | GENERAL MOTORS LLC · World manufacturer identifier |
| 4–8 | AW87W | Model, body style, engine and restraint system |
| 9 | × | Check digit — computed per vehicle, not part of the build |
| 10 | B | Model year — 1981 |
| 11 | × | Assembly plant |
| 12–17 | ×××××× | Production sequence number, unique to each vehicle |
43 vehicles carry this build
Every VIN we have decoded to 1G2AW87W-B shares the specification above.
- 43 Known VINs
- 3 Listed for sale now
- 5 Priced listings
- $29,995 Median asking
- 1G2AW87W 6BL107619
- 1G2AW87W 3BL100451
- 1G2AW87W 2BL118150
- 1G2AW87W 5BN111357
- 1G2AW87W 1BN119178
- 1G2AW87W 1BL106975
- 1G2AW87W 6BN109908
- 1G2AW87W 0BN107782
- 1G2AW87W XBL120034
- 1G2AW87W 7BL111386
- 1G2AW87W 0BN109905
- 1G2AW87W 7BN106774
- 1G2AW87W 1BN103627
- 1G2AW87W 4BL109949
- 1G2AW87W 1BN109489
- 1G2AW87W 1BL117491
- 1G2AW87W 3BL117265
- 1G2AW87W 1BL107236
- 1G2AW87W 9BN102578
- 1G2AW87W 3BL103933
- 1G2AW87W 3BL104113
- 1G2AW87W 8BN120957
- 1G2AW87W 7BL126194
- 1G2AW87W 3BL114883
- 1G2AW87W 6BL101044
- 1G2AW87W 6BN109147
- 1G2AW87W 8BL101255
- 1G2AW87W XBN117283
- 1G2AW87W 7BL120427
- 1G2AW87W 4BN102973
- 1G2AW87W 3BL122675
- 1G2AW87W 8BN116309
- 1G2AW87W 8BL110800
- 1G2AW87W 5BN112539
- 1G2AW87W 7BN113546
- 1G2AW87W 9BL121949
- 1G2AW87W 9BL104875
- 1G2AW87W 5BL133791
- 1G2AW87W 4BN120809
- 1G2AW87W 0BN237304
- 1G2AW87W 4BN101791
- 1G2AW87W 8BL100168
- 1G2AW87W 8BN103771
Neighboring configurations
Other factory configurations of the Firebird, each with its own build sheet. The set is fixed by the VIN patterns themselves, so it does not shuffle as prices or inventory move.
Keep going
Where this data comes from
Specification fields are decoded from the manufacturer's filings in the NHTSA vPIC database, keyed on VIN positions 1–8 and 10. We publish the filed values as they stand and leave out anything the filing does not record.
Prices are asking prices from 5 live dealer listings decoded to this build , last updated August 30, 2026 . They are what sellers ask, not what buyers paid.
Vehicle counts come from the 43 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.