Ferrari Lampredi engine

Lampredi V12 in Ferrari 342 America
Overview
Manufacturer	Ferrari
Production	1950–1959
Layout
Configuration	DOHC, 8-valve, Inline-4, two-valves per cylinder DOHC, 12-valve, Inline-6, two-valves per cylinder[1] SOHC, 24-valve, 60°, V12, two-valves per cylinder
Displacement	2.0–5.0 L (122.0–305.1 cu in)
Cylinder bore	68 mm (2.7 in) V12 72 mm (2.8 in) V12 79 mm (3.1 in) V12 80 mm (3.1 in) V12 84 mm (3.3 in) V12 88 mm (3.5 in) V12 90 mm (3.5 in) L4 93 mm (3.7 in) L4 94 mm (3.7 in) L4/L6 100 mm (3.9 in) L4 102 mm (4.0 in) L4/L6 103 mm (4.1 in) L4
Piston stroke	68 mm (2.7 in) V12 74.5 mm (2.9 in) V12 78 mm (3.1 in) L4 73.5 mm (2.9 in) L4 90 mm (3.5 in) L4/L6 79.5 mm (3.1 in) L4 105 mm (4.1 in) L4
Cylinder block material	Aluminium
Cylinder head material	Aluminium
Combustion
Fuel system	Weber carburetor
Fuel type	Petrol
Oil system	Wet sump Dry sump
Cooling system	Water-cooled
Output
Power output	121–279 kW (165–379 PS; 162–374 hp)
Torque output	170–270 lb⋅ft (230–366 N⋅m)
Chronology
Predecessor	Ferrari Colombo engine
Successor	Ferrari Jano engine Ferrari Dino engine

The Ferrari Lampredi engine was a naturally aspirated all aluminum 60° V12 engine produced between 1950 and 1959. Inline-4 and Inline-6 variants for racing were derived from it.

Aurelio Lampredi designed a number of racing engines for Ferrari. He was brought on to hedge the company's bets with a different engine family than the small V12s designed by Gioacchino Colombo. Variants of his design powered the company to a string of world championships in the 1950s. All were quickly abandoned due to changing engine displacement sizes (because, starting in 1958, the sports regulations required sport cars to have engines within 3 litres), with the Dino V6 and V8 taking the place of the fours and sixes and evolution of the older Colombo V12 continuing as the company's preeminent V12.