2000-2002 Pontiac Firebird IV 5.7i V8 (329 Hp) Automatic

The Pontiac Firebird IV 5.7i V8 Automatic, produced between 2000 and 2002, represented the final iteration of Pontiac’s iconic pony car. Positioned as the performance flagship of the fourth-generation Firebird (1993-2002), this variant offered a substantial power upgrade over the base V6 models and the intermediate 3.8L V6. It was a direct competitor to the Ford Mustang GT and Chevrolet Camaro SS, aiming for enthusiasts seeking a powerful, rear-wheel-drive American coupe. The Firebird IV, built on the F-body platform shared with the Chevrolet Camaro, marked the end of an era for Pontiac, as the Firebird line was discontinued alongside its Camaro sibling in 2002.

Technical Specifications

Brand Pontiac
Model Firebird
Generation Firebird IV
Type (Engine) 5.7i V8 (329 Hp) Automatic
Start of production 2000
End of production 2002
Powertrain Architecture Internal Combustion engine
Body type Coupe
Seats 4
Doors 3
Fuel consumption (urban) 13.1 l/100 km (18 US mpg, 21.6 UK mpg, 7.6 km/l)
Fuel consumption (extra urban) 9.1 l/100 km (25.8 US mpg, 31 UK mpg, 11 km/l)
Fuel consumption (combined) 11.2 l/100 km (21 US mpg, 25.2 UK mpg, 8.9 km/l)
Fuel Type Petrol (Gasoline)
Acceleration 0 – 100 km/h 6 sec
Acceleration 0 – 62 mph 6 sec
Acceleration 0 – 60 mph 5.7 sec
Maximum speed 250 km/h (155.34 mph)
Weight-to-power ratio 4.8 kg/Hp, 207.6 Hp/tonne
Weight-to-torque ratio 3.3 kg/Nm, 299.7 Nm/tonne
Power 329 Hp @ 5200 rpm
Power per litre 58.1 Hp/l
Torque 475 Nm @ 4400 rpm (350.34 lb.-ft. @ 4400 rpm)
Engine layout Front, Longitudinal
Engine Model/Code LS1
Engine displacement 5665 cm3 (345.7 cu. in.)
Number of cylinders 8
Engine configuration V-engine
Cylinder Bore 99 mm (3.9 in.)
Piston Stroke 92 mm (3.62 in.)
Compression ratio 10.1:1
Number of valves per cylinder 2
Fuel injection system Multi-port manifold injection
Engine aspiration Naturally aspirated engine
Engine oil capacity 5.2 l (5.49 US qt | 4.58 UK qt)
Coolant capacity 11.2 l (11.83 US qt | 9.85 UK qt)
Kerb Weight 1585 kg (3494.33 lbs.)
Trunk (boot) space – minimum 365 l (12.89 cu. ft.)
Trunk (boot) space – maximum 955 l (33.73 cu. ft.)
Fuel tank capacity 59 l (15.59 US gal | 12.98 UK gal)
Length 4910 mm (193.31 in.)
Width 1890 mm (74.41 in.)
Height 1320 mm (51.97 in.)
Wheelbase 2570 mm (101.18 in.)
Front track 1540 mm (60.63 in.)
Rear (Back) track 1540 mm (60.63 in.)
Drivetrain Architecture Rear wheel drive
Number of gears and type of gearbox 4 gears, automatic transmission
Front suspension Double wishbone
Rear suspension Coil spring
Front brakes Ventilated discs
Rear brakes Ventilated discs
Assisting systems ABS (Anti-lock braking system)
Steering type Steering rack and pinion
Power steering Hydraulic Steering
Tires size 235/55 R16
Wheel rims size 16

INTRODUCTION

The 2000-2002 Pontiac Firebird IV 5.7i V8 Automatic was the pinnacle of performance for the fourth-generation Firebird. Built on the versatile F-body platform, it shared its underpinnings with the Chevrolet Camaro. The “5.7i” designation referred to the engine displacement and fuel injection system. This variant was positioned as the top-tier Firebird, offering a significant performance boost over the V6 models and appealing to drivers who prioritized power and a classic American muscle car experience. It represented a final attempt by Pontiac to maintain a presence in the performance coupe segment before the brand’s eventual demise.

Powertrain & Engine Architecture

The heart of the Firebird IV 5.7i was the LS1 5.7-liter (345.7 cubic inch) V8 engine. This engine, part of General Motors’ Small-Block family, was a significant upgrade from previous Firebird engines. It featured an aluminum block and cylinder heads, contributing to a relatively lightweight design. The LS1 utilized a multi-port fuel injection system, delivering precise fuel metering for optimal performance and efficiency. The engine boasted a 10.1:1 compression ratio and two valves per cylinder. The 4L60E four-speed automatic transmission was the sole transmission option for this model. This transmission was known for its durability and smooth shifting, although it wasn’t as performance-oriented as a manual transmission. The automatic transmission was calibrated to provide a balance between acceleration and drivability, with gear ratios optimized for both city and highway driving.

Driving Characteristics

The Firebird IV 5.7i Automatic delivered a potent driving experience. The 329 horsepower and 350 lb-ft of torque provided brisk acceleration, with 0-60 mph times consistently in the 5.7-second range. While a manual transmission would have likely shaved some time off those figures, the automatic offered a more accessible and comfortable driving experience for a wider range of drivers. The 4L60E transmission, while smooth, did exhibit some inherent torque converter slip, which slightly diminished the feeling of direct connection to the engine. The rear-wheel-drive configuration provided a classic muscle car feel, with ample traction and a tendency towards oversteer when pushed to its limits. The suspension, while tuned for comfort, offered reasonable handling characteristics, allowing for confident cornering.

Equipment & Trim Levels

The Firebird IV 5.7i came standard with a relatively well-equipped interior. Features included leather bucket seats, air conditioning, power windows and locks, and a premium sound system. Optional extras included a T-top roof, upgraded audio systems, and various cosmetic enhancements. The interior design was typical of early 2000s GM vehicles, with a focus on functionality and durability rather than luxury. The dashboard featured analog gauges, providing clear and concise information to the driver. The Firebird IV also included standard safety features such as anti-lock brakes (ABS).

Chassis & Braking

The Firebird IV utilized a traditional front-engine, rear-wheel-drive layout. The chassis featured a double wishbone suspension in the front and a coil spring suspension in the rear. Ventilated disc brakes were standard on all four wheels, providing adequate stopping power for the car’s weight and performance. ABS was included as a standard safety feature. The suspension was tuned to provide a balance between ride comfort and handling performance. While not a dedicated track car, the Firebird IV offered a reasonably composed ride, even on less-than-perfect road surfaces.

Market Reception & Comparison

The Firebird IV 5.7i was generally well-received by automotive critics, who praised its powerful engine and aggressive styling. However, some reviewers noted that the interior felt dated compared to some of its competitors. Compared to the V6-powered Firebirds, the 5.7i offered a substantial performance upgrade, but at a higher price point. Against rivals like the Ford Mustang GT and Chevrolet Camaro SS, the Firebird IV offered a comparable level of performance and features. Fuel economy, at 18 mpg city and 25 mpg highway, was typical for a V8-powered sports coupe of that era. Reliability was generally good, although the 4L60E transmission could be prone to issues if not properly maintained.

Legacy

The Pontiac Firebird IV 5.7i V8 Automatic represents the final chapter in the Firebird’s storied history. While the F-body platform itself was discontinued in 2002, the LS1 engine has become a popular choice for engine swaps and performance modifications. Today, the Firebird IV 5.7i is a sought-after collectible, particularly among enthusiasts who appreciate its classic American muscle car styling and potent V8 engine. Well-maintained examples command a premium in the used car market. The powertrain, while not without its quirks, has proven to be relatively durable and reliable, making it a viable option for those seeking a classic American performance car.

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