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Oldsmobile Diesel engine

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Manufacturer
  
Oldsmobile

Configuration
  
V6 V8

Production
  
1978–1985

Piston stroke
  
3.385 in (86.0 mm)

Oldsmobile Diesel engine

Displacement
  
261 cu in (4,280 cc) 263 cu in (4,310 cc) 350 cu in (5,737 cc)

Cylinder bore
  
3.5 in (89 mm) 4.057 in (103.0 mm)

Oldsmobile produced three versions of a diesel engine between 1978 to 1985: a 5.7 litre V8 1978-85, a 4.3 litre V8 in 1979, and a 4.3 litre V6 1982-1985. Both powered rear-wheel drive vehicles; the 4.3 litre was adapted to both transverse and inline front-wheel drive applications. Sales peaked in 1981 at approximately 310,000 units, which represented 60% of the total U.S. passenger vehicle diesel market. However, this success was short-lived due to decline in gas prices and difficulties resulting from large volumes of diesel fuel containing water or foreign particles being sold beginning with the diesel's introduction.

Contents

The Oldsmobile diesel subsequently gained a reputation for unreliability and anemic performance that damaged the North American passenger diesel market for the next 30 years.

In spite of this, the Oldsmobile diesels' strong blocks continue to see use in gasoline-powered race engines.

LF9

The LF9 is a 350 cu in (5,737 cc) diesel V8 produced from 1978 to 1985. Earlier versions and those used in pickups produced 120 hp (89 kW) and 220 ft·lbf (300 N·m) torque, while later versions produced 105 hp (78 kW) and 205 ft·lbf (278 N·m) torque.

Applications:

  • Buick – varying model years of Century, Electra, LeSabre, Regal, and Riviera
  • Cadillac – varying model years of de Ville, Eldorado, Fleetwood Brougham, and Seville
  • Chevrolet – varying model years of C10, Caprice, El Camino, Impala, Malibu, Monte Carlo, and Suburban
  • GMC – varying model years of C1500, Caballero, and Suburban
  • Oldsmobile – varying model years of Custom Cruiser, Cutlass/Cutlass Cruiser/Cutlass Salon, Cutlass Supreme/Cutlass Calais, Delta 88, Ninety-Eight, and Toronado
  • Pontiac – varying model years of Bonneville, Catalina, Grand Prix, and Parisienne
  • 1980–1982 Checker Marathon

    • LF7

    The LF7 is a 260 cu in (4.3 L) V8 putting out 90 hp (67 kW) and 160 ft·lbf (220 N·m) torque.

    Applications:

  • 1979 Oldsmobile Cutlass Salon
  • 1979 Oldsmobile Cutlass Supreme/Cutlass Calais

    • LT6

    The LT6 is 4.3 liter V6 produced from 1982 to 1984 and installed in rear-wheel drive vehicles. Power was rated at 85 bhp (63 kW) @ 3600 rpm and 165 lb·ft (224 N·m) @ 1600 rpm.

    Applications:

  • 1982–1984 Buick Regal
  • 1982–1983 Chevrolet Malibu
  • 1982–1983 Chevrolet Monte Carlo
  • 1982–1984 Oldsmobile Cutlass Supreme/Cutlass Calais

    • LT7

    The LT7 is a transversely-mounted version of the 4.3 liter V6 produced from 1982 to 1985. Power was rated at 85 bhp (63 kW) @ 3600 rpm and 165 lb·ft (224 N·m) @ 1600 rpm.

    Applications:

  • 1982–1985 Buick Century
  • 1982–1985 Chevrolet Celebrity
  • 1982–1985 Oldsmobile Cutlass Ciera
  • 1982–1985 Pontiac 6000

    • LS2

    The LS2 4.3 liter V6 produced only in 1985 and installed in front wheel drive vehicles.

    Applications:

  • 1985 Buick Electra
  • 1985 Cadillac de Ville
  • 1985 Cadillac Fleetwood
  • 1985 Oldsmobile Ninety-Eight

    • References

    Oldsmobile Diesel engine Wikipedia
    (Text) CC BY-SA