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Alfa Romeo Flat-4 engine

Alfa Romeo Twin Cam engine


Alfa Romeo developed a flat-4 engine for their new Alfasud, introduced in 1971.


1200

The original engine displaced 1.2 L (1186 cc) with a 80 mm bore and 59 mm stroke.

Applications:

1300

The engine was stroked (to 64 mm) to create the 1.3 L (1286 cc) version. This engine produced 75 hp (56 kW).

Applications:

1400

A rare version was the 1.4 L (1350 cc) variant.

Applications:

1500

From 1978 until 1987, the largest member of the family was the 1.5 L (1490 cc) "1500". It produced 85 to 105 hp (63 to 78 kW). This is the largest engine to be naturally found in Alfasuds and Sprints, though many have picked them up over subsequent years.

Applications:

1700

In 1986 the engine was increased in size to 1712cc

1700 16V

In 1990 a quad cam 16 valve version of the venerable boxer was produced, it was the most powerful to date with 137bhp. Only available in fuel injected form, the 1.7 16V was equipped with the Bosh ML 4.1 system.

The last Alfa Romeo flat-4 was produced in 1995, a run of 24 years.


Years Engine Cylindrates
1954–1994 Twin Cam 1290, 1570, 1750, 1779, 1962
1992–present TwinSpark 1.4, 1.6, 1.7, 1.8, 2.0
1971–1995 Flat-4 1186, 1286, 1350, 1490, 1712
1979–2006 V6 2.0, 2.5, 3.0, 3.2
2006–present GM based V6 3.2