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Engines
1950s
Britain

BMC C-Series engine

 BMC C-Series engine range history
 
 
 

The BMC C-Series was a straight-6 automobile engine produced from 1956 to 1971. Unlike the Austin designed A and B-series engines, it came from the Morris engines drawing office in Coventry. Displacement was 2.6 to 2.9 L (2,912 cc) with an 83.3 mm bore and 88.9 mm stroke.

Applications:

  • 2.6 L (2,639 cc) 77x89 mm
    • 1954-1959 Wolseley 6/90
    • 1954-1959 Austin Westminster A90/A95/A105
    • 1955-1958 Morris Isis
    • 1958-1959 Riley Two-Point-Six
    • 1956-1959 Austin-Healey 100-6
  • 2.9 L (2,912 cc) 83.36x88.9 mm. Four bearing crankshaft.
    • 1959-1968 Austin Westminster A99/A110
    • 1959-1968 Wolseley 6/99 and 6/110
    • 1959-1964 Vanden Plas Princess 3-Litre
    • 1959-1967 Austin-Healey 3000
  • 2.9 L (2,912 cc) 83.36x88.9 mm. Seven bearing crankshaft.
    • 1967-1971 Austin 3-Litre
    • 1968-1970 MGC
Related items
Riley Two-Point-Six | MG MGC | Vanden Plas Princess | Wolseley 6/110 | Wolseley 6/99 | Wolseley 6/90 | Austin 3-Litre | Austin A95 | Austin A90 | Austin A110 | Austin A99 | Austin-Healey | Petrol Engines | Morris Isis | Straight 6 Engines | BMC C-Series engine | Straight-6 cars

Technical

Technical
  • BMC C-Series engine  Technical details and specifications (1956-1971)

    ENGINE: 3.0L (2,912 cc)

    front, 4 stroke
    cylinders: 6, vertical, in line
    bore and stroke: 3.28 x 3.50 in, 83,3 x 88.9 mm
    engine capacity: 178.10 cu in, 2912 cu cm
    compression ratio: 8.3 : 1
    max power (SAE): 126 hp at 4750 rpm
    max torque (SAE): 163 1b ft, 22.5 kgm at 2750 rpm
    max number of engine rpm: 5600
    specific power: 43.3 hp/l
    cylinder block: cast iron
    cylinder head: cast iron
    crankshaft bearings: 4
    valves: 2 per cylinder, overhead, in line, with push rods and rockers
    camshaft: 1, side
    lubrication: gear pump, full flow filter
    lubricating system capacity: 6.4 imp qt, 7.7 US qt, 7.3 1
    carburation: 2 SU H4 horizontal carburettors
    fuel feed: electric pump
    cooling system: water

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