Lancia V4 engine

File:Lancia Lambda Airway Saloon 1927-5.jpg

The first V4 was used in the Lambda from 1922 through 1931. It was a 20° narrow-angle aluminium design. All three engine displacements shared the same long {{convert|120|mm|in|2|abbr=on}} stroke, and all were SOHC designs with a single camshaft serving both banks of cylinders.

Engines:

• {{cvt|2119|cc|L|1|order=flip}} {{convert|75|mm|in|2|abbr=on}}, {{cvt|49|PS|kW hp|0}} at 3250 rpm
• {{cvt|2370|cc|L|1|order=flip}} {{convert|79.37|mm|in|2|abbr=on}}, {{cvt|59|PS|kW hp|0}} at 3250 rpm
• {{cvt|2568|cc|L|1|order=flip}} {{convert|82.55|mm|in|2|abbr=on}}, {{cvt|69|PS|kW hp|0}} at 3500 rpm

The Lambda engine was updated for the Artena. Bore was set at {{convert|82.55|mm|in|2|abbr=on}} as in the 2.6 L Lambda, but stroke was reduced to a more conventional {{convert|90|mm|in|2|abbr=on}}. Total displacement was {{cvt|1927|cc|L|1|order=flip}}, with {{cvt|55|PS|kW hp|0}} produced at 4000 rpm.

An all-new V4 was designed for the Augusta. Produced from 1934 through 1938, the Augusta's engine displaced {{cvt|1196|cc|L|1|order=flip}} with a {{convert|69.85x78|mm|in|2|abbr=on}} bore and stroke. Power output was {{cvt|35|PS|kW hp|0}} at 4000 rpm.

The engine was redesigned again for 1936's Aprilia. The first-series cars used a {{cvt|1352|cc|L|1|order=flip}} version with a {{convert|72x82|mm|in|2|abbr=on}} bore and stroke. Output was {{cvt|47|PS|kW hp|0}} at 4300 rpm.

A second series was unveiled for 1939 with an enlarged {{cvt|1486|cc|L|1|order=flip}} engine. It did not share its predecessor's dimensions, with bore and stroke now at {{convert|74.61x85|mm|in|2|abbr=on}}. Power output was nearly the same at {{cvt|48|PS|kW hp|0}}.

File:1952 Lancia 'tipo 100B' engine in an Ardea.jpg

A small V4 (tipo 100) powered the compact 1939 Ardea. It was a 20° narrow-angle engine displacing just {{cvt|903|cc|L|1|order=flip}}. Bore and stroke were new again at {{convert|65x68|mm|in|2|abbr=on}}, and output was just {{cvt|28.8|PS|kW hp}} at 4600 rpm. For the 1949 tipo 100B power was increased to {{cvt|30|PS|kW hp|0}}.

File:Desfile de autos antiguos 188.JPG

The V4 returned after the war with the 1953 Appia. It featured an even narrower 10° cylinder bank and just {{cvt|1090|cc|L|1|order=flip}} of displacement, fitting below Italy's 1.1-liter tax threshold. An initial {{cvt|38|PS|kW hp|0}} of power grew to {{cvt|43|PS|kW hp|0}} in 1956. {{cvt|48|PS|kW hp|0}} was available in 1959.

Lancia's final V4 series were used in the Fulvia, remaining in production up until 1976. Designed by Ettore Zaccone Mina, it used a narrow angle (13°) and was mounted well forward at a 45° angle. The engine was a true DOHC design with one camshaft operating all intake valves and another operating all exhaust valves.

Displacement began at just {{cvt|1091|cc|L|1|order=flip}} with {{cvt|59|PS|kW hp|0}} with a {{convert|72x67|mm|in|2|abbr=on}} bore and stroke. A higher (9.0:1) compression ratio raised power to {{cvt|71|PS|kW hp|0}} soon after.

The engine was bored to {{convert|76|mm|in|2|abbr=on}} to enlarge engine displacement to {{cvt|1216|cc|L|1|order=flip}} for the Coupé model. This, and some tuning, raised output to {{cvt|80|PS|kW hp|0}}, further enhanced up to {{cvt|88|PS|kW hp|0}} for the HF model.

The engine was re-engineered with a slightly narrower bank angle and longer {{convert|69.7|mm|in|2|abbr=on}} stroke for 1967. Three displacements were produced: {{cvt|1199|cc|L|1|order=flip}} {{convert|74|mm|in|2|abbr=on}} bore, {{cvt|1231|cc|L|1|order=flip}} {{convert|75|mm|in|2|abbr=on}} bore, and {{cvt|1298|cc|L|1|order=flip}} {{convert|77|mm|in|2|abbr=on}} bore. The latter engine is most common, with the first unit only sold in Greece. Three levels of performance were available: {{cvt|87|PS|kW hp|0}} for common 1.3 Liter (commonly imported in USA and described as "highly tuned" by Road & Track at the time); {{cvt|90|PS|kW hp|0}} for its 1.3s evolution and {{cvt|101|PS|kW hp|0}} for the Rallye HF.

The engine was redone again for a new HF with an even narrower 11° cylinder bank and longer {{convert|75|mm|in|2|abbr=on}} stroke for its final incarnation. A bore of {{convert|82|mm|in|2|abbr=on}} gave it a displacement of {{cvt|1584|cc|L|1|order=flip}}, and power shot up to between {{cvt|114 and 132|PS|kW hp|0}} depending on tune.

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• Volkswagen VR6 engine, for a more technically detailed article about narrow-angle V-engines

{{Commons category|Lancia V4 engine}}

• [http://www.lancisti.net/ Lancisti.net - An Information Exchange and Support Community for Lancia Owners and Enthusiasts]
• {{cite web | title=All about Lancia Fulvia | work=Fulvia Site | url=http://www.alma.it/vanzettip/fulvia/fulviae.html | accessdate=March 10, 2005 | archive-url=https://web.archive.org/web/20050307070616/http://www.alma.it/vanzettip/Fulvia/fulviae.html | archive-date=March 7, 2005 | url-status=dead }}
• {{cite journal | editor-first = James T. | editor-last = Crowe | title = Toyota 2000 GT | journal=Road & Track Road Test Annual | year=1968 | pages=110–113}}

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V4

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