Lancia V6 engine
{{More citations needed|date=January 2019}}
{{Infobox automobile engine
|name=Lancia V6 engine
|image=Lancia V6 engine v TCE.jpg
|manufacturer=Lancia
|production=1950–1970
|configuration = Naturally aspirated 60° V6
|valvetrain=OHV 2 valves x cyl.
| power = {{convert|56-152|hp|kW PS|0|abbr=on}}
| displacement = {{convert|1754|cc|L cuin|1|abbr=on|order=flip}}
{{convert|1991|cc|L cuin|1|abbr=on|order=flip}}
{{convert|2266|cc|L cuin|1|abbr=on|order=flip}}
{{convert|2451|cc|L cuin|1|abbr=on|order=flip}}
{{convert|2458|cc|L cuin|1|abbr=on|order=flip}}
{{convert|2775|cc|L cuin|1|abbr=on|order=flip}}
| bore = {{convert|70|mm|in|2|abbr=on}}
{{convert|72|mm|in|2|abbr=on}}
{{convert|78|mm|in|2|abbr=on}}
{{convert|80|mm|in|2|abbr=on}}
{{convert|85|mm|in|2|abbr=on}}
| stroke = {{convert|76|mm|in|2|abbr=on}}
{{convert|81.5|mm|in|2|abbr=on}}
{{convert|85.5|mm|in|2|abbr=on}}
{{convert|82|mm|in|2|abbr=on}}
| block = Light alloy{{Cite web|url=http://www.ritzsite.net/Lancia/02_LanciaCC.htm|title=Lancia Coupés & Convertibles|accessdate=2007-09-15|work=ritzsite.net}}
| head = Aluminium alloy
| fueltype = Petrol
| fuelsystem = Carburetor
| coolingsystem = Water-cooled
}}
In 1950, Lancia introduced one of the world's first production V6 engines in the Lancia Aurelia. The engine was the work of Francesco De Virgilio and was developed to solve the vibration problems Lancia had experienced with its V4 engines. This was achieved by setting the vee angle to 60 degrees. It remained in production through 1970. Lancia used V6 engines in road and sports cars, the D20 had a 60 degree quad cam V6 2962 cc {{convert|217|bhp|kW PS|0|abbr=on}} engine and the D24 3300 cc V6 engine.{{Cite web|url=http://www.uniquecarsandparts.com.au/heritage_lancia.htm|title=Lancia Heritage|accessdate=2007-09-15|work=uniquecarsandparts.com.au}}
Aurelia
The first-generation Aurelia engines were produced from 1950 through 1967.
=1800=
The {{convert|1754|cc|L cuin|1|abbr=on|order=flip}} 1800 was the first V6. Bore and stroke was {{convert|70x76|mm|in|2|abbr=on}}.{{Cite web|url=http://www.viva-lancia.com/aurelia/EngB10.htm|title=Lancia Aurelia: B10 engine}}
- 1950 Lancia Aurelia
=2000=
The engine was expanded to {{convert|1991|cc|L cuin|1|abbr=on|order=flip}} for 1951's B21 Aurelia. Bore and stroke was {{convert|72x81.5|mm|in|2|abbr=on}}.
- 1951-1952 Lancia Aurelia
=2300=
A {{convert|2266|cc|L cuin|1|abbr=on|order=flip}} version was also produced.
=2500=
The largest of the original Aurelia engines was the {{convert|2451|cc|L cuin|1|abbr=on|order=flip}} 2500 introduced in 1953. It was still undersquare at {{convert|78x85.5|mm|in|2|abbr=on}} bore and stroke.
- 1953-1957 Lancia Aurelia
Flaminia
The engine's severe undersquare design was addressed for the 1957 Flaminia version. This lasted in production through 1970.
=2500=
The new engine displaced {{convert|2458|cc|L cuin|1|abbr=on|order=flip}} from a much less undersquare {{convert|80x82|mm|in|2|abbr=on}} bore and stroke.
- 1957-1970 Lancia Flaminia
=2800=
The final version was the {{convert|2775|cc|L cuin|1|abbr=on|order=flip}} engine. Bore was now {{convert|85|mm|in|2|abbr=on}} and stroke remained at {{convert|82|mm|in|2|abbr=on}} as in the 2500.
- 1957-1970 Lancia Flaminia
Later V6-engined Lancias
Later Lancias were powered by V6 engines designed by other manufacturers, with the Ferrari Dino V6 powering the Stratos, the PRV V6 powering early Themas, the Alfa Romeo Busso V6 powering later versions of the Thema, and versions of the Kappa and Thesis and the Chrysler Pentastar V6 in the badge-engineered 300C-based Thema.