In Italian it is known as the "bialbero", and has also been nicknamed the "Nord" (North) engine in reference to its being built in Milan in the North of Italy and to distinguish it from the Alfa Romeo Boxer engine built in the South (Sud) for the Alfasud.The Twin Cam's predecessor appeared in the 1950 Alfa Romeo 1900 and was an under-square inline four cylinder with a cast-iron block, an aluminium alloy cylinder head with double overhead cams and a 90° included angle between intake and exhaust valves. The cambelt is often referred to as a camshaft drive belt or timing belt and it is a reinforced, toothed rubber belt used in the majority of vehicles today.It is propelled by the engine crankshaft and drives the camshaft, which in turn operates the engine valves. The cambelt is located at the front of the engine underneath a protective cover, and is behind the more obvious drive belts such as the fan belt and alternator belt. The cambelt carries a very high load in the engine and, as with any rubber component of the vehicle; it can wear with age and with use.The engine displaced 1290 cc in the 1954 Giulietta.
1.3 L (1,290 cc (78.7 cu in)) 1.3 L (1,357 cc (82.8 cu in)) 1.6 L (1,567 cc (95.6 cu in)) 1.7 L (1,749 cc (106.7 cu in)) 1.8 L (1,773 cc (108.2 cu in)) 1.8 L (1,779 cc (108.6 cu in)) 2.0 L (1,962 cc (119.7 cu in)) The Alfa Romeo Twin Cam engine is an all-alloy Inline-four engine series produced by Alfa Romeo from 1954 to 1994.Also other environmental conditions play part, such as dust and stop/start driving conditions. Failure to duly replace the cambelt at the manufacturer's recommended intervals can cause extensive and expensive damage to your vehicle.If the cambelt is not replaced it can break or the drive teeth can be stripped.Alfa Romeo has tried to make the Giulietta a bit more approachable, by shortening the ‘Quadrifoglio Verde’ moniker to straight-up QV.The car is a Corolla-sized hatchback, and in its most-sporty guise here, now packs a 177k W/340Nm turbocharged four-cylinder engine.