1977-1978 Chevrolet Malibu El Camino (Sedan Pickup) 5.0 V8 (135 Hp) CAT Automatic

The Chevrolet Malibu El Camino, specifically the 5.0 V8 (135 hp) variant with a catalytic converter and automatic transmission, represented a unique offering in the American automotive landscape of the late 1970s. Produced for the 1977 and 1978 model years, this vehicle blended the practicality of a pickup truck with the styling of a traditional sedan, appealing to buyers seeking a versatile vehicle. It was built on the A-body platform, shared with other GM vehicles like the Chevelle and Monte Carlo, but distinguished itself with its open cargo bed. This particular engine and transmission combination occupied a mid-range position within the El Camino lineup, offering a balance between performance and fuel economy, though leaning more towards the former given the era.

Technical Specifications

Brand Chevrolet
Model Malibu
Generation Malibu El Camino (Sedan Pickup)
Type (Engine) 5.0 V8 (135 Hp) CAT Automatic
Start of production 1977
End of production 1978
Powertrain Architecture Internal Combustion engine
Body type Pick-up
Seats 3
Doors 2
Fuel Type Petrol (Gasoline)
Power 135 Hp @ 3800 rpm
Power per litre 27 Hp/l
Torque 325 Nm @ 2000 rpm / 239.71 lb.-ft. @ 2000 rpm
Engine layout Front, Longitudinal
Engine displacement 5001 cm3 / 305.18 cu. in.
Number of cylinders 8
Engine configuration V-engine
Cylinder Bore 94.89 mm / 3.74 in.
Piston Stroke 88.4 mm / 3.48 in.
Compression ratio 8.4:1
Number of valves per cylinder 2
Fuel injection system Carburettor
Engine aspiration Naturally aspirated engine
Valvetrain OHV
Engine oil capacity 4.2 l / 4.44 US qt | 3.7 UK qt
Trunk (boot) space – maximum 2033 l / 71.79 cu. ft.
Fuel tank capacity 66 l / 17.44 US gal | 14.52 UK gal
Length 5121 mm / 201.61 in.
Width 1826 mm / 71.89 in.
Height 1366 mm / 53.78 in.
Wheelbase 2974 mm / 117.09 in.
Front track 1486 mm / 58.5 in.
Rear (Back) track 1467 mm / 57.76 in.
Front overhang 915 mm / 36.02 in.
Rear overhang 1232 mm / 48.5 in.
Ride height (ground clearance) 147 mm / 5.79 in.
Approach angle 20°
Departure angle 15°
Ramp-over (brakeover) angle 13°
Drivetrain Architecture The Internal combustion engine (ICE) drives the rear wheels of the vehicle.
Drive wheel Rear wheel drive
Number of gears and type of gearbox 3 gears, automatic transmission
Front suspension Independent, type McPherson with coil spring and anti-roll bar
Rear suspension dependent spring suspension, Transverse stabilizer, Trailing arm
Front brakes Ventilated discs
Rear brakes Drum
Steering type Steering rack and pinion
Tires size 205/75 R14
Wheel rims size 6.0J x 14

Powertrain & Engine Architecture

The heart of this El Camino variant was the Chevrolet 305 cubic inch (5.0 liter) small-block V8 engine. Designated with the engine code likely being a variation of the Q-code, it produced 135 horsepower at 3800 rpm and 325 Nm (239.71 lb-ft) of torque at 2000 rpm. This engine utilized a two-barrel carburetor for fuel delivery, a relatively simple system for the time. The engine featured an overhead valve (OHV) valvetrain with two valves per cylinder. The catalytic converter, a relatively new technology in 1977-78, was mandated by increasingly stringent emissions regulations and aimed to reduce harmful exhaust gases. The engine was longitudinally mounted in the front of the vehicle, driving the rear wheels. The three-speed automatic transmission, a Turbo-Hydramatic 350, was a common and reliable unit for GM vehicles of this era. It provided smooth, if not particularly quick, shifts.

Driving Characteristics

The 135 hp V8 and automatic transmission combination delivered adequate, but not exhilarating, performance. Acceleration was reasonable for the time, but the El Camino wasn’t designed for outright speed. The automatic transmission’s gear ratios were geared towards cruising and fuel efficiency, rather than aggressive acceleration. Compared to the available 350 cubic inch V8 options, this engine felt noticeably less powerful, especially when fully loaded or climbing hills. However, the automatic transmission made it a more user-friendly option for everyday driving than the available manual transmissions. The rear-wheel-drive configuration provided a traditional driving experience, but also meant that traction could be a concern in slippery conditions.

Equipment & Trim Levels

The 1977-78 Malibu El Camino with the 5.0 V8 and automatic transmission typically came standard with features like a bench seat, basic instrumentation, and a standard AM radio. Interior upholstery was typically cloth and vinyl. Optional extras included air conditioning, power steering, power brakes, upgraded sound systems, and various trim packages. The El Camino offered a relatively spartan interior compared to some of its contemporary car-based counterparts, reflecting its more utilitarian nature. The trim level generally fell in the mid-range of the El Camino offerings, positioned above the base models but below the more luxurious and higher-performance trims.

Chassis & Braking

The El Camino’s chassis featured an independent front suspension with McPherson struts, coil springs, and an anti-roll bar, providing a reasonably comfortable ride. The rear suspension utilized a traditional leaf spring setup with a transverse stabilizer, offering a more robust solution for handling cargo loads. Braking duties were handled by ventilated disc brakes at the front and drum brakes at the rear. While adequate for the vehicle’s weight and performance, the braking system wasn’t particularly sophisticated by modern standards. Steering was accomplished via a rack-and-pinion system, providing reasonably precise control.

Market Reception & Comparison

The Malibu El Camino, in general, was well-received by buyers looking for a unique and versatile vehicle. However, the 5.0 V8 automatic combination received mixed reviews. Critics often noted its adequate, but not exceptional, performance. Fuel economy, while not terrible for the era, was a concern given the rising gas prices of the late 1970s. Compared to the more powerful 350 V8 options, the 5.0 V8 offered a lower price point and slightly better fuel economy, making it an attractive option for budget-conscious buyers. The 1.9 TDI or VR6 options were not available at this time, as this was a late 70’s American vehicle.

Legacy

The Chevrolet Malibu El Camino, particularly the 5.0 V8 automatic variant, has become a popular classic among collectors and enthusiasts. The 305 V8 engine, while not the most powerful option, is known for its reliability and relative simplicity, making it easier to maintain and repair. Parts availability is generally good, thanks to the engine’s widespread use in other GM vehicles. Today, these El Caminos are often found in restored condition or as the basis for custom builds. The combination of classic styling, a usable cargo bed, and a relatively affordable price point has ensured its continued appeal in the used car market.

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