1981 Pontiac Firebird Trans Am

Pony car powered by 1981 Pontiac Firebird Trans Am engine family.

Exact-year, stock-presenting white Turbo Trans Am retained as the family baseline for the final second-generation nose, aero pieces, offset Turbo 4.9 hood, graphics, hatch roof, glass, trim, wheels, tires, and stance; restoration and condition remain car-specific.

Body Two-door four-passenger Trans Am W87 sport coupe

Engines L37 301, LU8 Turbo 301, or LG4 305 V8

Transmissions MX1 automatic with L37/LU8; MM4 four-speed with regular U.S. LG4

Chassis Heavy-duty Radial Tuned Suspension; optional J65 or WS6 four-wheel discs

Production 33,493 reported, including 2,000 Y85 editions

Story

1981 Pontiac Firebird Trans Am

The 1981 Trans Am closed the second-generation Firebird run with three documented V8 paths, a regular or hatch-roof body, the WS6 chassis package, and Y84 and Y85 special editions. They belong on one model-year page because engines, roofs, chassis equipment, and appearance packages are configurations of the Trans Am W87 rather than separate car identities.

Three V8 paths

The standard L37 Pontiac 301 used a four-barrel carburetor and three-speed automatic. The optional LU8 Turbo 301 added draw-through turbocharging, required air conditioning, and also used the automatic. The Chevrolet LG4 305 paired with a four-speed manual in the regular United States application; published Canadian and production summaries conflict over some automatic LG4 cars, so those exceptions remain a documented application gap. VIN character, engine code, induction, emissions equipment, transmission, axle, dates, and records must agree.

Chassis, brakes, and WS6

Trans Am equipment included Radial Tuned Suspension, heavy-duty springs and dampers, power steering, and power front discs with rear drums. J65 supplied rear discs. WS6 combined four-wheel discs with 15 x 8 wheels, 225/70R15 tires, and larger stabilizer bars. G80 limited slip was optional or package-dependent. Wheels or a rear-disc conversion cannot prove an original WS6 build.

Body, cabin, colors, and editions

The front air dam, wheel-opening spoilers, rear spoiler, fender extractors, engine-turned instrument panel, rally gauges, bucket seats, and console defined the Trans Am presentation. Thirteen reviewed exterior colors apply; Bright Yellow code 51 did not. Graphics changed during the year, and Y84 or Y85 identity requires complete paint, graphics, cabin, drivetrain, roof, chassis, date, and documentary evidence rather than decals alone.

Production and proof boundaries

The reviewed totals report 33,493 Trans Ams, including 2,000 Y85 Daytona Pace Car editions. Body and trim rows reconcile to that total, but published transmission and engine subtotals conflict. This page therefore publishes the supported total and special-edition count while preserving finer production accounting as a gap. Authentication starts with VIN, title, body plate, shell, and ownership history, then reconciles every drivetrain, chassis, finish, cabin, option, and dated component.

**Exact-year blue Turbo Trans Am retained for an alternate stock-presenting front three-quarter view of the nose, lamps, aero pieces, hood treatment, hood bird, hatch roof, wheel design, and stance.**GPS 56 via Wikimedia Commons · CC BY 2.0

Specs

Car type: Pony car
Seats: 4
Body: Two-door four-passenger Trans Am W87 sport coupe with fixed roof or optional CC1 removable hatch panels
Engine: 1981 Pontiac Firebird Trans Am engine family
Horsepower: 150 net hp L37 or LG4, or 200 net hp LU8 Turbo
Torque: Configuration-specific factory rating follows engine, induction, emissions equipment, and transmission
Carburetion: Four-barrel carburetion with naturally aspirated or draw-through turbocharged induction by engine

Equipment

Front air dam, wheel-opening spoilers, rear spoiler, and functional fender extractors
Shaker hood or offset Turbo 4.9 hood treatment by engine
Engine-turned instrument panel, rally gauges, tachometer, bucket seats, and center console
15 x 7 Rally II wheels or package-specific cast wheels
Optional CC1 hatch roof, WS6 chassis, Y84 Black Special Edition, and Y85 Daytona Pace Car Edition

Linked Parts

Price history

Values

Nominal dollars from original price sheets, auction archives, and approved value references.

Original Price

A verified base MSRP is not yet available. Documented option and charge prices are shown below.

Option price $600

RPO C60 air conditioning (1981)
Required with LU8 Turbo; effective-date and package treatment require the car invoice.
1981 Firebird option and price schedule
Option price $737

RPO CC1 removable Fisher hatch roof (1981)
Regular option price; included in some special-edition configurations.
1981 Firebird option and price schedule
Option price $125

RPO D53 Trans Am hood decal (1981)
Optional on regular Trans Am and included with Y84; graphics varied by paint and running change.
1981 Firebird option and price schedule
Option price $167

RPO J65 four-wheel power disc brakes (1981)
Included with WS6; do not add both prices without invoice-level reconciliation.
1981 Firebird option and price schedule
Option price $437

RPO LU8 Turbo 4.9-liter V8 (1981)
Trans Am option price; required C60 air conditioning was separately priced.
1981 Firebird option and price schedule
Option price $580

RPO WS6 Special Performance Package (1981)
Regular Formula or Trans Am price; Y84 used a $372 package price.
1981 Firebird option and price schedule

Values move with paperwork, originality, options, condition, venue, and body style. High bids and guide values are labeled separately from completed sales.

Reference records

Options, Colors & Components

Source-backed details for trim, chassis, production, and authenticity.

Engine Details

RPO L37 Pontiac 301 V8 301 cu in; 8.1:1; four-barrel; 150 net hp at 4,000 rpm and 245 lb-ft at 2,000 rpm · Standard Trans Am engine with VIN W, MX1 automatic, and 2.56:1 axle; 3.08 optional · engine assembly / specification
RPO LU8 Turbo Pontiac 301 V8 301 cu in; 7.5:1; four-barrel draw-through turbo; 200 net hp at 4,000 rpm and 340 lb-ft at 2,000 rpm · Optional Trans Am engine with VIN T, MX1 automatic, 3.08:1 axle, and required C60 air conditioning · engine assembly / specification
RPO LG4 Chevrolet 305 V8 305 cu in; 8.6:1; four-barrel; 150 net hp at 3,800 rpm and 240 lb-ft at 2,400 rpm · Regular United States Trans Am application with VIN H, MM4 four-speed manual, and 3.42:1 axle; Canadian automatic exceptions remain unresolved · engine assembly / specification

Transmission

Factory transmission RPO MX1 three-speed Turbo Hydra-Matic automatic with L37 or LU8
Factory transmission RPO MM4 four-speed manual with the regular United States LG4 application
Factory transmission Published Canadian and production summaries conflict over some LG4 automatic applications

Options

Engines and Induction summarized from reviewed factory and marque references.Classic Muscle · Reference illustration

L37 150-hp Pontiac 4.9-liter four-barrel V8 factory · performance · VIN W, engine, induction, emissions equipment, automatic transmission, axle, cooling, exhaust, dates, and records must agree.
LU8 200-hp Turbo Pontiac 4.9-liter four-barrel V8 factory · performance · VIN T, turbo induction, MX1 automatic, 3.08 axle, required C60 air conditioning, dates, and records define this path.
LG4-MM4 150-hp Chevrolet 5.0-liter V8 with four-speed manual factory · performance · VIN H, Chevrolet engine, MM4 four-speed, clutch and floor controls, 3.42 axle, emissions equipment, dates, and records must agree.
WS6 Special Performance Package factory · performance · Four-wheel discs, 15 x 8 wheels, 225/70R15 tires, larger stabilizer bars, G80 equipment, dates, and records must reconcile.
J65 Four-wheel power disc brakes factory · performance · Optional separately and included with WS6; calipers, rotors, rear axle hardware, hydraulics, dates, and records must agree.
G80 Limited-slip differential factory · performance · Carrier, housing, ratio, engine, package, dates, lubricant, and order evidence define one installation.
CC1 Removable Fisher hatch roof factory · comfort · Panels, openings, latches, seals, storage equipment, trim, and records must agree.
Y84 Black Special Edition Trans Am factory · appearance · Black-and-gold finish, graphics, cabin, roof, drivetrain, chassis equipment, dates, and records must agree; appearance alone is not proof.
Y85 Daytona Pace Car Edition factory · appearance · Turbo drivetrain, model-specific finish, graphics, wheels, hatch roof, Oyster cabin, dates, and records must agree.
D53 Trans Am hood decal factory · appearance · Paint-compatible two-color graphic, running revision, placement, protected evidence, dates, and invoice must agree.
B18 Custom Trim Group factory · comfort · Doeskin vinyl or Hobnail cloth trim, color, seat structure, roof, options, dates, and records must agree.
C60 Air conditioning factory · comfort · Required with LU8; compressor, brackets, condenser, evaporator, controls, plumbing, engine equipment, dates, and records must agree.

Paint

Exact-year Y85 Daytona Pace Car Edition retained for its white-and-black finish, model-specific graphics, Turbo hood, hatch roof, wheels, and aero treatment; decals and paint alone cannot authenticate Y85 identity.Greg Gjerdingen via Wikimedia Commons · CC BY 2.0

11 White factory · solid
16 Silver Metallic factory · metallic
19 Black factory · solid
20 Bright Blue Metallic factory · metallic
21 Light Blue Metallic factory · metallic
29 Dark Blue Metallic factory · metallic
54 Gold Metallic factory · metallic
56 Yellow factory · solid
57 Orange Metallic factory · metallic
67 Dark Brown Metallic factory · metallic
75 Bright Red factory · solid
77 Dark Maroon Metallic factory · metallic
84 Dark Charcoal Metallic factory · metallic

Production

Exact-year Trans Am in basic exterior presentation retained for the body, nose, lamps, aero pieces, hood, glass, side profile, wheel openings, and non-hood-bird appearance context; condition remains subject-specific.Bull-Doser via Wikimedia Commons · Public domain

Transmissions summarized from reviewed factory and marque references.Classic Muscle · Reference illustration

1981 Pontiac Firebird Trans Am total · 33,493 · reported
Y85 Daytona Pace Car Edition by option · 2,000 · reported

Authenticity

Rear Axle and Ratios summarized from reviewed factory and marque references.Classic Muscle · Reference illustration

VIN, body, and Trans Am identity 1981 Firebird Trans Am W87 identity with VIN, title, body plate, shell, roof, and ownership records that agree · VIN plate and derivatives, certification label, body data plate, title, roof and shell structure, protected identity evidence, and ownership history · fraud detection
Engine, transmission, and axle path VIN W L37 with MX1 and 2.56 or supported 3.08, VIN T LU8 with MX1 and 3.08, or VIN H LG4 with supported transmission and axle application · VIN, engine stamps and castings, carburetion and turbo hardware, emissions equipment, transmission case and controls, axle housing and carrier, component dates, and build records · numbers matching
WS6, G80, and brake equipment Package-supported 15 x 8 wheels, 225/70R15 tires, stabilizer bars, four-wheel discs, limited-slip equipment, associated hardware, dates, and records · Build record, wheels, tires, stabilizer bars, front and rear brake assemblies, axle, carrier, hydraulic hardware, component dates, and service history · date correctness
Paint, graphics, roof, cabin, and edition Body-tag- and record-supported paint, two-color graphics, roof, trim group, upholstery, instruments, Y84 or Y85 equipment, and dates · Body data plate, invoice or build record, protected paint, graphic traces, roof structure, upholstery, instrument panel, edition hardware, and dated components · trim correctness

Still Researching

production The 33,493 total and 2,000 Y85 count are supported, but published transmission rows conflict internally and detailed LG4 engine/transmission classifications disagree across reviewed references.
engine The regular United States LG4 application is documented with the MM4 four-speed, while published Canadian and production summaries describe some LG4 automatic cars without a reconciled serial-level power-team ledger.
paint colors Thirteen Trans Am exterior codes and broad graphic choices are retained, but complete paint-to-graphic, Y84/Y85, cabin, roof, supplier, plant, and running-change compatibility remains unresolved.
interior Factory and exact-year references establish standard Oxen vinyl, B18 trim, instruments, console, controls, and Y85 presentation but not every trim-code, material, color, paint, roof, option, supplier, and running-change rule.
authenticity markers Public model-year references cannot establish one survivor's born-with shell, engine, transmission, axle, suspension, brakes, paint, graphics, cabin, roof, edition, options, or component dates.