Being unable to match Alfetta 158 performance, Lampredi upgraded the design to 4.1 L (4101 cc) for 340 F1.
Power output grew to 335 PS (246 kW; 330 hp) but the single-seater was used in non-championship race only and very soon replaced by even bigger engined Ferrari.
Like the Colombos, Lampredis engines found their way into road cars as well.
 The 1950 340 America and later 340 Mexico/MM were first with big 4.1 L (4101 cc) engines producing 220–280 PS (162–206 kW; 217–276 hp).
All GT road cars used wet sumps, apart for dry-sumped 340 America having engine based directly on the 340 F1.

Applications:
80 by 68 mm (3.1 by 2.7 in)
1950 Ferrari 340 F1
1950 Ferrari 340 America
1951 Ferrari 342 America
1952 Ferrari 340 Mexico
1953 Ferrari 340 MM
Being unable to match Alfetta 158 performance, Lampredi upgraded the design to 4.1 L (4101 cc) for 340 F1. Power output grew to 335 PS (246 kW; 330 hp) but the single-seater was used in non-championship race only and very soon replaced by even bigger engined Ferrari. Like the Colombos, Lampredis engines found their way into road cars as well.  The 1950 340 America and later 340 Mexico/MM were first with big 4.1 L (4101 cc) engines producing 220–280 PS (162–206 kW; 217–276 hp). All GT road cars used wet sumps, apart for dry-sumped 340 America having engine based directly on the 340 F1.
Applications:
80 by 68 mm (3.1 by 2.7 in)
1950 Ferrari 340 F1
1950 Ferrari 340 America
1951 Ferrari 342 America
1952 Ferrari 340 Mexico
1953 Ferrari 340 MM
Ferrari Lampredi engine