Introduction

I.D. NUMBERS

VIN LocationOn top of dash at left, viewable through windshield
PositionCharacterDescription
12General Motors: Pontiac Division
2SBasic Firebird
TFirebird Esprit
UFirebird Formula
WTrans Am
3 & 487hardtop coupe
5Engine code
  • C = 231-cid two-barrel V-6
  • Y = 301-cid two-barrel V-8
  • U = 305-cid four-barrel V-8
  • P = 350-cid four-barrel V-8 (L76)
  • R = 350-cid four-barrel V-8
  • L = 350-cid four-barrel V-8 (LM1)
  • Z = 400-cid four-barrel V-8
  • K = 403-cid four-barrel V-8
67Year: 1977
7_Assembly plant
8 to 13100001 and upproduction sequence

IDENTIFICATION

Model NumberStyle NumberBody TypeSeatingFactory PriceShipping WeightProduction Total
2FS872-door Hardtop Base Firebird - V64$4269326430,642
both 6 & V8
2FS872-door Hardtop Base Firebird - V84$43343349
2FT872-door Hardtop Esprit - V64$4550331234,548
2FT872-door Hardtop Esprit - V84$46153397
2FU872-door Hardtop Formula4$4976341121,801
2FW872-door Hardtop Trans Am4$5456352668,745

ENGINE

VIN CodeCYUP (L76)R (Olds)L (LM1) (Chev)ZK
Cylinders90° V-690° V-890° V-890° V-890° V-890° V-890° V-890° V-8
ValvingOverhead valveOverhead valveOverhead valveOverhead valveOverhead valveOverhead valveOverhead valveOverhead valve
BlockCast-ironCast-ironCast-ironCast-ironCast-ironCast-ironCast-ironCast-iron
HeadCast-ironCast-ironCast-ironCast-ironCast-ironCast-ironCast-ironCast-iron
Bore & Stroke3.80 x 3.40 in.4.00 x 3.00 in.3.74 x 3.48 in.3.88 x 3.75 in.4.06 x 3.384.00 x 3.484.12 x 3.754.35 x 3.38
Displacement231 cid (3.8 liters)301 cid (5.0 liters)305 cid (5.0 liters)350 cid (5.7 liters)350 cid (5.7 liters)350 cid (5.7 liters)400 cid (6.6 liters)403 cid (6.6 liters)
Compression ratio8.0 : 18.2 : 18.5 : 17.6 : 18.0 : 18.5 : 17.6 : 18.0 : 1
Brake H.P.105 @ 3200 rpm135 @ 3800145 @ 3800 rpm170 @ 4000 rpm170 @ 3800 rpm170 @ 3800 rpm180 @ 3600 rpm185 @ 3600 rpm
Torque (lb-ft)185 @ 2000 rpm235-245 @ 2000 rpm245 @ 2400 rpm280 @ 1800 rpm275 @ 2000 rpm270 @ 2400 rpm325 @ 1600 rpm320 @ 2200 rpm
Main bearingsFourFiveFiveFiveFiveFiveFiveFive
Valve liftersHydraulic
Carburetor2-barrel Rochester 2GC2-barrel Rochester2-barrel Rochester 2GC4-barrel Rochester M4MC4-barrel Rochester M4MC4-barrel Rochester M4MC4-barrel Rochester M4MC4-barrel Rochester M4MC

TRANSMISSION

Three-speed manual floor shift
Four-speed manual shift
Three-speed automatic
V-6 Engine gear ratio3.08 : 1
V-8 301 Engine gear ratio3.23 : 1
V-8 323 Engine gear ratio2.41 : 1
Trans Am gear ratio3.23 : 1 or 3.42 : 1

CHASSIS

FEATUREFirebirdEspritFormulaTrans Am
Wheelbase108.1 in.108.1 in.108.1 in.108.1 in.
Overall length196.8 in.196.8 in.196.8 in.196.8 in.
Height49.1 in.49.449.449.6
Width73.073.073.073.0
Front tread60.960.961.361.2
Rear tread60.060.060.460.3
TiresFR78x15FR78x15FR78x15GR70x15
SteeringRecirculating ball
Front suspensioncoil springs with lower trailing links and anti-sway bar
Rear suspensionsemi-elliptic leaaf springs with anti-sway bar
BrakesFront disc, rear drums
IgnitionElectronic
Body constructionUnit with separate partial frame
Fuel tank20.2 gal

OPTIONS

301-cid V-8$65
350-cid four-barrel V-8 (Firebird)$155
350-cid four-barrel V-8 (Formula)$90
400-cid four-barrel V-8 (Formula)$155 - $205
400-cid four-barrel V-8 (Trans Am)$50
Four-speed manual transmission (Firebird)$257
Turbo-Hydra-Matic$248
Safe-T-Track differential$54
Rally RTS handling package$46 - $116
Heavy-duty battery$16 - $18
Maintenance-free battery$31
Heavy-duty alternator$45
Engine block heater$12 - $13
Esprit Skybird appearance package$325 - $342
Trans Am Special Edition$556 - $1143
Firebird custom trim group$27 - $118
Formula appearance package$127
Air conditioning$442 - $540
Cruise control$80 - $84
Power windows$108 - $151
Glass sunroof$587
Canopy top$105
Rear spoiler$51

HISTORICAL NOTES

1977 Firebird Notes

1977 FIREBIRD PHOTOS

1977 Firebird
1977 Firebird
1977 Firebird
1977 Firebird
1977 Firebird
1977 Firebird
1977 Firebird
1977 Firebird
1977 Firebird Esprit
1977 Firebird Esprit
1977 Firebird Formula
1977 Firebird Formula
1977 Firebird Formula
1977 Firebird Formula
1977 Trans Am
1977 Firebird Trans Am
1977 Trans Am
1977 Firebird Trans Am
Red 1977 Formula
1977 Firebird Formula
1977 Trans Am
1977 Firebird Trans Am
1977 Trans Am
1977 Firebird Trans Am
1977 Trans Am
1977 Firebird Trans Am
1977 Trans Am
1977 Firebird Trans Am
1977 Trans Am
1977 Firebird Trans Am
1977 Trans Am
1977 Firebird Trans Am
1977 Trans Am
1977 Firebird Trans Am

LITERATURE

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