| Lancia V6 engine | |
| Manufacturer: | Lancia |
| Production: | 1950 - 1970 |
| Configuration: | Naturally aspirated 60° V6 |
| Valvetrain: | OHV 2 valves x cyl. |
| Power: | NaN0NaN0 |
| Displacement: | 1754cc 1991cc 2266cc 2451cc 2458cc 2775cc |
| Bore: | 702NaN2 722NaN2 782NaN2 802NaN2 852NaN2 |
| Stroke: | 762NaN2 81.52NaN2 85.52NaN2 822NaN2 |
| Block: | Light alloy[1] |
| 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.[1] 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 2170NaN0 engine and the D24 3300 cc V6 engine.[2]
The first-generation Aurelia engines were produced from 1950 through 1967.
The 1754cc 1800 was the first V6. Bore and stroke was NaN2NaN2.[3]
The engine was expanded to 1991cc for 1951's B21 Aurelia. Bore and stroke was NaN2NaN2.
A 2266cc version was also produced.
The largest of the original Aurelia engines was the 2451cc 2500 introduced in 1953. It was still undersquare at NaN2NaN2 bore and stroke.
The engine's severe undersquare design was addressed for the 1957 Flaminia version. This lasted in production through 1970.
The new engine displaced 2458cc from a much less undersquare NaN2NaN2 bore and stroke.
The final version was the 2775cc engine. Bore was now 852NaN2 and stroke remained at 822NaN2 as in the 2500.
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.