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Austin D-Series engine

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Austin D-Series/ K-series
Overview
ManufacturerAustin Motor Company
Production1939–1968 United Kingdom
Layout
Configurationstraight-6
Displacement
  • 211.09 cu in (3,459 cc)
  • 243.54 cu in (3,991 cc)
Cylinder bore
  • 3+1132 in (85 mm)
  • 3+716 in (87 mm)
Piston stroke
  • 4 in (100 mm)
  • 4+38 in (110 mm)
Cylinder block materialCast Iron
Cylinder head materialCast iron
ValvetrainOHV, 2 valves per cylinder
Combustion
SuperchargerN/A
TurbochargerN/A
Fuel systemCarburetor
Fuel typeGasoline
Oil systemPressurized
Cooling systemWater-cooled
Output
Power output
  • 60 to 68 bhp (45 to 51 kW; 61 to 69 PS) 3,460cc
  • 87 to 130 bhp (65 to 97 kW; 88 to 132 PS) 3,991cc
Chronology
PredecessorAustin 28 side-valve I6
SuccessorBMC C-Series engine

The Austin D Series engine is a straight-six engine made by the Austin Motor Company of England between 1939 and 1968. It was developed initially for the lorry market. But it was used in a number of automobiles in its later life. It was an Overhead valve design. The head is of non-crossflow design. [1]: 1 

The design of the D-series is inspired by the Chevrolet Stovebolt engine which was an inline 6 engine that was used in GM's British subsidiary Bedford truck. In the late 1930s, when rival Austin decided to get into the 2-3 ton truck ("lorry") market and in a crash program based the design on the basic architecture of this "Stove Bolt" engine. Austin however made detail improvements to the Chevrolet design. Austin’s designer Leonard Lord added detachable shell main and con-rod bearings and pressurized lubrication.

The D-series initially powered the Austin Loadstar and the 4x4 variant K9

Post war, it went on to power cars such as the Austin Sheerline and Princess, and the Jensen Interceptor and 541. Austin also lopped off two cylinders and in that form various versions, with various capacities, powered cars such as the Austin 16, A70 Hampshire and Hereford, A90 Atlantic, the Austin-Healey 100-4 and the Austin Gipsy, a generation of commercial vans, as well as some models of the iconic London black taxi (FX3 and FX4).

The initial design had a swept capacity of 3460cc which debuted on Austin Sheerline. Austin developed it into a 4.0-liter engine which produced 87bhp. When the carburetor was changed from Zenith to Stromberg, it produced 100bhp

See also

References

  1. ^ "Austin Engines" (pdf). Thoroughbred and Classic Cars.