The Pontiac Grand Am Coupe (H) with the 3.3i V6 engine and automatic transmission represents a significant iteration of Pontiac’s popular compact car, produced from 1991 through 1998. This variant occupied a middle ground within the Grand Am lineup, offering a balance between affordability and performance. It was positioned above the base four-cylinder models and below the more performance-oriented trims. The “H” designation refers to the second generation of the Grand Am coupe, built on the N-body platform, which was shared with other GM vehicles like the Buick Skylark and Oldsmobile Cutlass Supreme. This generation aimed to modernize the Grand Am’s styling and improve its overall refinement.
Technical Specifications
| Brand | Pontiac |
| Model | Grand AM |
| Generation | Grand AM Coupe (H) |
| Type (Engine) | 3.3i V6 (160 Hp) Automatic |
| Start of production | 1991 |
| End of production | 1998 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 5 |
| Doors | 2 |
| Fuel consumption (urban) | 9.8 l/100 km (24 US mpg) |
| Fuel consumption (extra urban) | 7.3 l/100 km (32.2 US mpg) |
| Fuel consumption (combined) | 8.4 l/100 km (28 US mpg) |
| Fuel Type | Petrol (Gasoline) |
| Maximum speed | 190 km/h (118.06 mph) |
| Weight-to-power ratio | 8.7 kg/Hp |
| Weight-to-torque ratio | 5.1 kg/Nm |
| Power | 160 Hp @ 4600 rpm |
| Power per litre | 47.8 Hp/l |
| Torque | 271 Nm @ 3600 rpm (199.88 lb.-ft. @ 3600 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | LG7 |
| Engine displacement | 3350 cm3 (204.43 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 92 mm (3.62 in.) |
| Piston Stroke | 84 mm (3.31 in.) |
| Compression ratio | 9:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | OHC |
| Engine oil capacity | 3.8 l (4.02 US qt | 3.34 UK qt) |
| Coolant | 9.8 l (10.36 US qt | 8.62 UK qt) |
| Kerb Weight | 1395 kg (3075.45 lbs.) |
| Trunk (boot) space (minimum) | 415 l (14.66 cu. ft.) |
| Fuel tank capacity | 54 l (14.27 US gal | 11.88 UK gal) |
| Length | 4750 mm (187.01 in.) |
| Width | 1730 mm (68.11 in.) |
| Height | 1360 mm (53.54 in.) |
| Wheelbase | 2630 mm (103.54 in.) |
| Front track | 1500 mm (59.06 in.) |
| Rear (Back) track | 1500 mm (59.06 in.) |
| Drivetrain Architecture | ICE, Front wheel drive |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 4 gears, automatic transmission |
| Front suspension | Spring Strut |
| Rear suspension | Spring Strut |
| Front brakes | Ventilated discs |
| Rear brakes | Drum |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 215/60 R15 |
Powertrain & Engine Architecture
The heart of this Grand Am variant is the 3.3-liter (3350 cc) LG7 V6 engine. This engine is a 90-degree V6, utilizing a single overhead camshaft (OHC) design with two valves per cylinder. The LG7 was a relatively simple and robust engine, known for its smooth operation and decent power output for its displacement. Fuel delivery is managed by a multi-port fuel injection system, contributing to improved fuel efficiency and reduced emissions compared to earlier carbureted designs. The engine produces 160 horsepower at 4600 rpm and 271 Nm (199.88 lb-ft) of torque at 3600 rpm. This power is then sent to the front wheels through a four-speed automatic transmission. The transmission was a typical GM 4L40-E unit, known for its reliability and smooth shifting, although it wasn’t particularly sporty in its tuning.
Driving Characteristics
The 3.3L V6 automatic Grand Am offered a comfortable and relatively refined driving experience. Acceleration was adequate for everyday driving, with the automatic transmission providing smooth, if not particularly quick, gear changes. The 0-60 mph time was estimated to be around 9-10 seconds. Compared to the base four-cylinder models, the V6 provided a noticeable improvement in responsiveness and highway passing power. However, it wasn’t as quick or engaging as the higher-performance trims equipped with the 3.4-liter V6 or manual transmissions. The automatic transmission’s gear ratios were geared towards fuel economy and cruising comfort rather than outright performance. The front-wheel-drive configuration provided predictable handling, but it lacked the dynamic finesse of rear-wheel-drive vehicles.
Equipment & Trim Levels
The 3.3i V6 automatic Grand Am typically came with a reasonable level of standard equipment. This included features like air conditioning, power windows and locks, an AM/FM stereo, and cloth upholstery. Optional extras included a sunroof, upgraded sound system, cruise control, and alloy wheels. Interior trim levels varied, with some models offering more luxurious cloth or even leather upholstery. The dashboard layout was typical of early 1990s GM vehicles, with a functional but somewhat dated design.
Chassis & Braking
The Grand Am Coupe (H) utilized a front-wheel-drive chassis with independent front suspension featuring MacPherson struts and a multi-link rear suspension. This suspension setup provided a comfortable ride, although it wasn’t particularly sporty. Braking duties were handled by ventilated disc brakes at the front and drum brakes at the rear. Anti-lock braking system (ABS) was standard, enhancing safety by preventing wheel lockup during hard braking. Steering was provided by a hydraulic power rack-and-pinion system, offering light and easy steering feel. The standard tire size was 215/60R15.
Market Reception & Comparison
The 3.3i V6 automatic Grand Am was generally well-received by critics as a practical and affordable mid-size coupe. It offered a good balance of performance, fuel economy, and features for the price. However, some reviewers noted that the automatic transmission could feel sluggish at times, and the interior design was somewhat bland. Compared to the four-cylinder models, the V6 offered a significant improvement in performance, but it came at a higher price. Compared to the 3.4-liter V6 trims, it offered less power and performance. Fuel economy was respectable, averaging around 28 mpg on the highway.
Legacy
The Pontiac Grand Am Coupe (H) 3.3i V6 automatic has become a relatively affordable and accessible classic car in the used market. The LG7 V6 engine is known for its reliability, although regular maintenance is essential to prevent issues like oil leaks and coolant loss. The automatic transmission is also generally reliable, but it may require servicing after high mileage. These cars are often sought after by enthusiasts looking for a nostalgic and affordable coupe. While not a high-performance vehicle, the 3.3i V6 automatic Grand Am offers a comfortable and enjoyable driving experience, making it a popular choice for those seeking a classic American coupe.
