Lancia Flat-4 engine
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Lancia, known for their advanced engineering, surprised the auto world by designing a new aluminum flat-4 engine for their 1961 Flavia. Though it was a pushrod engine, it was advanced for the time. The pushrod version of the Lancia boxer was only ever used in the Flavia. In the mid 1970s, a new overhead cam engine based on a similar layout was designed and brought into production in 2 and 2.5 litre forms fitted to the Gamma.
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[edit] Pushrod
[edit] 1500
The original version was the 1500 cc introduced in 1960; it used an 82 mm bore and 71 mm stroke. It was revised on 1963 with a smaller 80 mm bore and a longer 74 mm stroke, thus displacing 1488 cc. A final version was introduced in 1967 with a even longer 80 mm stroke coupled with a 77 mm bore, giving a displacement of 1490 cc. Production ceased in 1970.
[edit] 1800
The first 1800 was a 1.7 L (1727 cc) introduced in 1962. It used an 88 mm (3.5 in) bore and 71 mm (2.8 in) stroke. One year later it was replaced by a true 1.8 L (1800 cc) engine thanks to a longer 74 mm (2.9 in) stroke. In 1967 appeared the 1816 cc version using an 85 mm stroke with a 80 mm bore.
[edit] 2000
The 2.0 L (1991 cc) 2000 version was the ultimate Flavia engine. Bore was 89 mm (3.5 in) and stroke was 80 mm (3.1 in) for a good oversquare ratio. This engine was produced from 1968 through 1974.
[edit] OHC
[edit] 2000
Fitted to Gamma.
[edit] 2500
Fitted to Gamma.
