Alfa Romeo Twin Spark engine
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Alfa Romeo Twin Spark technology was used for the first time in the Alfa Romeo Grand Prix car in 1914. In the early 1960s it was used in their race cars to enable it to achieve a higher power output from its engines. Wikipedia
Cylinder block material: Aluminium (Alfa Romeo Twin Cam engine); and cast iron (Fiat Pratola Serra modular engines)
Cylinder head material: Aluminium
Fuel system: Carburetor, Fuel injection
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