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Motore Alfa Romeo tipo 00100 - 1300 bialbero
1960 - 1961



The 00100 engine, produced by Alfa Romeo in the early 1960s, features all the iconic characteristics of its predecessors, such as the double overhead camshaft (named bialbero)and the extensive use of aluminum alloy. Originally conceived for the Giulietta sedan, it was also used, with numerous modifications, for the other Alfa Romeo models. The engine undergone a continuous improvement, remaining into production with the same arrangement, for over 20 years.

Technical specifications

ManufacturerAlfa Romeo, Milan, Italy, from 1960 to 1961
TypeAR 00100
Descriptioninline 4-cylinder engine, head, oil sump and cylinder block made of aluminium alloy, with 3 main bearings and steel cylinder liners
Stroke75 mm
Bore74 mm
Displacement1290 cm³
Compression ratio8.5
Power62 hp at 6500 rpm
Specific power48.1 hp/litre
Valvetrain system2 overhead valves per cylinder, operated by two overhead camshafts driven by a double-chain transmission
Fuel feeding systemwith a single-barrel gasoline carburetor Solex C 32 BIC
Ignition systemwith one spark plug per cylinder fed by an inductive discharge system with a high-voltage distributor
Cooling systemliquid-fed by a centrifugal pump
Lubrication systemforced by a gear pump


Alfa Romeo Giulietta sedan, from 1960 to 1961

Alfa Romeo Giulietta Promiscua (station wagon, 1960)

Testi e immagini di Giuseppe Genchi
Sito realizzato da Pasquale Pillitteri