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Lancia V4 engine | |
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Overview | |
Manufacturer | Lancia |
Production | 1922-1976 |
Layout | |
Configuration | All V4s at: 10°, 11°, 13°, 20° |
Displacement |
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Cylinder bore |
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Piston stroke |
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Cylinder head material | Aluminum |
Valvetrain | SOHC or DOHC |
Compression ratio | 9.0:1 |
Combustion | |
Fuel system | Carburetor |
Fuel type | Gasoline |
Oil system | Wet sump |
Cooling system | Water-cooled |
Output | |
Power output | 28.8–132 PS (21–97 kW) |
Chronology | |
Successor | Lancia Flat-4 engine |
Italian automobile company Lancia was the first to manufacture cars with V4 and V6 engines in series-production. This started with a number of V4-engine families, that were produced from the 1920s through 1970s.
The Lancia V4 pioneered the narrow-angle V engine design, more recently seen in Volkswagen's VR5 and VR6 engines. By using very shallow V-angles — between 10° and 20° — both rows of cylinders could be housed in an engine block with a single cylinder head, like a straight engine. A determining characteristic was the use of overhead camshafts (either single or double), in which a camshaft would serve the same function for all cylinders — in both cylinder banks.