Chevrolet Turbo-Air 6 engine

Turbo-Air 6
Overview
ManufacturerChevrolet
DesignerAl Kolbe
Also called
  • Corvair engine
  • Pancake six[1]: 94 
Production1960–1969 Tonawanda Engine
(engine block and heads)
Massena Castings Plant
Layout
ConfigurationFlat-6
Displacement
  • 139.6 cu in (2,287 cc) (1960)
  • 144.7 cu in (2,372 cc) (1961–1963)
  • 163.7 cu in (2,683 cc) (1964–1969)
Cylinder bore
  • 3.375 in (85.7 mm) (1960)
  • 3.4375 in (87.31 mm) (1961–1969)
Piston stroke
  • 2.6 in (66 mm) (1960–1963 NA, 1960–1964 Turbo)
  • 2.94 in (74.7 mm) (1964–1969 NA, 1965–1969 Turbo)
Cylinder block material
Cylinder head materialAluminum
ValvetrainOHV, pushrods, hydraulic tappets
Compression ratio8.0:1, 8.25:1, 9.0:1, 9.25:1, 10.5:1
Combustion
TurbochargerSingle (some models)
Fuel system
Fuel typeGasoline
Oil systemWet sump
Cooling systemAir-cooled
Output
Power output
  • 80 hp (60 kW)
  • 84 hp (63 kW)
  • 95 hp (71 kW)
  • 98 hp (73 kW)
  • 102 hp (76 kW)
  • 110 hp (82 kW)
  • 140 hp (100 kW)
  • 150 hp (110 kW) (Turbo)
  • 180 hp (130 kW) (Turbo)
Torque output125–232 lb⋅ft (169–315 N⋅m)
Dimensions
Dry weight366 lb (166 kg)[2]: 16 

The Chevrolet Turbo-Air 6 is a flat-six air-cooled automobile engine developed by General Motors (GM) in the late 1950s for use in the rear-engined Chevrolet Corvair of the 1960s. It was used in the entire Corvair line, as well as a wide variety of other applications.

The engine's use of air-cooling made it appealing to aircraft amateur builders, and small volume engine builders established a cottage industry modifying Corvair engines for aircraft.[3]

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