Pontiac offered four varieties of the Firebird
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| VIN Location | On top of dash at left, viewable through windshield | |
|---|---|---|
| Position | Character | Description |
| 1 | 2 | General Motors: Pontiac Division |
| 2 | S | Basic Firebird |
| T | Firebird Esprit | |
| U | Firebird Formula | |
| W | Trans Am | |
| 3 & 4 | 87 | hardtop coupe |
| 5 | _ | Engine code (see listing in engine section) |
| 6 | 6 | Year: 1976 |
| 7 | _ | Assembly plant |
| 8 to 13 | 100001 and up | production sequence |
| Model Number | Style Number | Body Type | Seating | Factory Price | Shipping Weight | Production Total |
|---|---|---|---|---|---|---|
| 2F | S87 | 2-door Hardtop Base Firebird - 6 cyl | 4 | $3908 | 3383 | 21,209 both 6 & V8 |
| 2F | S87 | 2-door Hardtop Base Firebird - V8 | 4 | $4046 | 3563 | |
| 2F | T87 | 2-door Hardtop Esprit - 6 cyl | 4 | $4162 | 3431 | 20,826 |
| 2F | T87 | 2-door Hardtop Esprit - V8 | 4 | $4302 | 3611 | |
| 2F | U87 | 2-door Hardtop Formula | 4 | $4566 | 3625 | 20,613 |
| 2F | W87 | 2-door Hardtop Trans Am | 4 | $4987 | 3640 | 46,701 |
| VIN Code | F | M | S | W |
| Cylinders | Inline Six | 90° V-8 | 90° V-8 | 90° V-8 |
| Valving | Overhead valve | Overhead valve | Overhead valve | Overhead valve |
| Block | Cast-iron | Cast-iron | Cast-iron | Cast-iron |
| Head | Cast-iron | Cast-iron | Cast-iron | Cast-iron |
| Bore & Stroke | 3.87 x 3.53 in. | 3.88 x 3.75 in. | 4.12 x 3.75 in. | 4.15 x 4.21 in. |
| Displacement | 250 cid (4.1 liters) | 350 cid (5.7 liters) | 400 cid (6.6 liters) | 455 cid (7.5 liters) |
| Compression ratio | 8.3 : 1 | 7.6 : 1 | 7.6 : 1 | 7.6 : 1 |
| Brake H.P. | 110 @ 3400 rpm | 160 @ 4000 | 185 @ 3600 rpm | 200 @ 3500 rpm |
| Torque (lb-ft) | 185 @ 1200 rpm | 280 @ 2000 rpm | 310 @ 1600 rpm | 330 @ 2000 rpm |
| Main bearings | Seven | Five | Five | Five |
| Valve lifters | Hydraulic | Hydraulic | Hydraulic | Hydraulic |
| Carburetor | One-barrel Rochester | Two-barrel Rochester | Four-barrel Rochester | Four-barrel Rochester |
| Engine | Transmission | Final Gear Ratio |
| Six-cyl | 3-speed manual floor shift | 2.73:1 |
| Firebird V-8 | Four-speed manual shift | 2.41:1 |
| Trans Am 400 V-8 | Four-speed manual shift | 3.08:1 |
| Trans Am 455 V-8 | Four-speed manual shift | 3.23:1 |
| Feature | Firebird | Esprit | Formula | Trans Am |
| Wheelbase | 108.1 in. | 108.1 in. | 108.1 in. | 108.1 in. |
| Overall length | 196.8 in. | 196.8 in. | 196.8 in. | 196.8 in. |
| Height | 49.1 in. | 49.4 | 49.4 | 49.6 |
| Width | 73.0 | 73.0 | 73.0 | 73.0 |
| Front tread | 60.9 | 60.9 | 61.3 | 61.2 |
| Rear tread | 60.0 | 60.0 | 60.4 | 60.3 |
| Tires | FR78x15 | FR78x15 | FR78x15 | GR70x15 |
| Steering | Recirculating ball | |||
|---|---|---|---|---|
| Front suspension | coil springs with lower trailing links and anti-sway bar | |||
| Rear suspension | semi-elliptic leaaf springs with anti-sway bar | |||
| Brakes | Front disc, rear drums | |||
| Ignition | Electronic | |||
| Body construction | Unit with separate partial frame | |||
| Fuel tank | 20.5 gal | |||
| 350-cid two-barrel V-8 | $140 |
| 350-cid four-barrel V-8 (Firebird) | $195 |
| 350-cid four-barrel V-8 (Formula) | $55 |
| 400-cid four-barrel V-8 (Firebird) | $258 |
| 400-cid four-barrel V-8 (Formula) | $118 |
| 455-cid four-barrel V-8 (Trans Am) | $125 |
| Close-ratio four-speed transmission (Firebird) | $242 |
| Five-speed manual transmission(Firebird) | $262 |
| Five-speed manual transmission(Formula) | N/C |
| Five-speed manual transmission(Trans Am) | N/C |
| Safe-T-Track differential (Firebird) | $51 |
| Super-cooling radiator | $27 - $49 |
| Heavy-duty battery | $15 - $17 |
| Heavy-duty alternator | $42 |
| Engine block heater | $11 - $12 |
| California emissions | $50 |
| Air conditioning | $424 - $512 |
| Cruise control | $73 |
| Power windows | $99 - $159 |
| Firebird custom trim group | $81 |
| Firebird Formula appearance package | $100 |
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