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Fiat Twin Cam engine

Designed by Aurelio Lampredi the Fiat Twin Cam was an advanced straight-4 automobile engine produced from 1959 through 1994 as a Fiat/Lancia engine and from 1994 onwards with a redesigned cylinder-head as an Alfa Romeo engine (replacing the original Alfa Romeo Twin-Cam in all front-wheel drive Alfa Romeos). As the name implies, it was a DOHC design, which was quite unusual in the late 1950s. A few non-DOHC variants were also produced. The engine was produced in a large number of displacements, ranging from 1297 cc to 1995 cc and was used in Fiat, Lancia and Alfa Romeo automobiles.

Applications:


Displacement
(cc)
Bore
(mm)
Stroke
(mm)
1297 76 72
1301
1367
1438 80 72
1491 78 78
1491 78 78
1585 84 71.5
1592 80 79.2
1598
1608 80 80
1756 84 79.2
1995 84 90