Alfa Romeo Flat-4 engine
Overview
 
Alfa Romeo developed a water-cooled flat-4
Flat-4
A flat-4 or horizontally opposed-4 is a flat engine with four cylinders arranged horizontally in two banks of two cylinders on each side of a central crankcase...

 engine for their new Alfasud
Alfa Romeo Alfasud
The Alfa Romeo Alfasud is a compact car made by Alfa Romeo of Italy from 1971 to 1989. It was considered one of Alfa Romeo's most successful models, sold 893,719 examples from 1972 to 1983 plus 121,434 Sprint versions from 1976 to 1989. A common nickname for the car is ’Sud...

, introduced in 1971 at the Turin Motor Show.
The original engine displaced 1186 cc with an 80 mm bore and 59 mm stroke and produced between 63 PS.

Applications:
  • 1971-1983 Alfa Romeo Alfasud
    Alfa Romeo Alfasud
    The Alfa Romeo Alfasud is a compact car made by Alfa Romeo of Italy from 1971 to 1989. It was considered one of Alfa Romeo's most successful models, sold 893,719 examples from 1972 to 1983 plus 121,434 Sprint versions from 1976 to 1989. A common nickname for the car is ’Sud...

  • 1984-1986 Alfa Romeo Arna
    Alfa Romeo Arna
    The Alfa Romeo Arna is a subcompact automobile produced by the Italian manufacturer Alfa Romeo between 1983 and 1987.Launched at the 1983 Frankfurt Motor Show, the Arna was a product of a short-lived partnership between Alfa Romeo and Japanese manufacturer Nissan; the car's name was an acronym...

  • 1984-1986 Nissan Cherry
    Nissan Cherry
    The E10 generation featured four-wheel independent suspension.The E10 was fitted with two types of inline four-cylinder Nissan A-series OHV engines:* 988 cc A10* 1171 cc A12...

     Europe (rebadged Alfa Romeo Arna, sold also as Nissan Pulsar Milano in Japan)
  • 1983-1995 Alfa Romeo 33 (late versions for export only)

The engine was stroked (to 64 mm) to create the 1286 cc version.
 
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