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Reciprocating internal combustion engine
Fiat Twin Cam engine
Overview
Manufacturer
Fiat/Lancia
Production
1966–2000
Layout
Configuration
Inline-4
Displacement
1.3–2.0 L (1,297–1,995 cc)
Cylinder bore
76 mm (2.99 in)
76.1 mm (3.00 in)
78 mm (3.07 in)
80 mm (3.15 in)
82.6 mm (3.25 in)
84 mm (3.31 in)
Piston stroke
71.5 mm (2.81 in)
79.2 mm (3.12 in)
80 mm (3.15 in)
90 mm (3.54 in)
Cylinder block material
Cast iron
Cylinder head material
Aluminium alloy
Valvetrain
DOHC 2 or 4 valves x cyl.
Combustion
Supercharger
In VX versions
Turbocharger
In some versions
Fuel system
Carburetor, Indirect injection, Direct injection
Fuel type
Gasoline
Cooling system
Water-cooled
Chronology
Successor
Fiat Pratola Serra engine
The Fiat Twin Cam (also known as the Lampredi Twin Cam) is an advanced double overhead camshaft inline-four automobile engine produced from 1966 through 2000 as a Fiat/Lancia engine. Designed by ex Ferrari engineer Aurelio Lampredi, the engine was produced in a large number of displacements, ranging from 1.3 to 2.0 L (1,297 to 1,995 cc) and was used in Fiat, Lancia, Alfa Romeo, SEAT, FSO and Morgan cars. The Fiat Twin Cam engine has been widely used in motorsport and has been the most successful engine in the history of the World Rally Championship. Fiat and Lancia won a total of ten World Rally Championships for Manufacturers using engines based on the Lampredi Twin Cam engine. It was replaced by the Fiat "family B" Pratola Serra engine series.
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