Ferrari 121 LM 

  • built in Italy
  • 1955-1955
  • 330 HP 4.4L
  • 180 mph
Even though it was the chassis technology in the D-Type that made it special, Ferrari mimicked the 6-cylnder XK and it’s double overhead camshaft (DOHC) design.
Engineer Aurelio Lampredi took the basic design of these engines and added two additional cylinders.

Road Tests Real world tests of the Ferrari 121 LM

Top speed

121 LM
180 mph
253 mph
220 mph

Data points Key details of the Ferrari 121 LM

Number built

121 LM
3 cars
300 cars
4 cars


121 LM
330 HP
987 HP
750 HP

In The News From around the web


Ferrari 121 LM
This was indeed motor racing from the best possible position...following the Ferrari at a discreet distance...”¹ “Out of the town we joined an incredibly fast stretch, straight for many miles, and we started alongside the Ferrari in bottom gear, but try as the Mercedes-Benz did the red car just drew away from us, and once more Moss and I exchanged very puzzled looks.
”¹ “Through Padova we followed the 4.4-litre Ferrari and on acceleration we could not hold it, but the Italian was driving like a maniac, sliding all the corners, using the pavements and the loose edges of the road.

Specifications Full list of technical specs


Brand Ferrari
Type of car Race car
Year 1955-1955
Number built 3 cars


Drivetrain RWD
Gearing Traditional


Displacement 4,410 cc
Air compressor None
Fuels Gas
Compression ratio 8.5:1
Bore/stroke 4 in / 3.5 in
Valvetrain DOHC
Valves per cylinder 2 valves

road tests

Top speed 180 mph

power & handling

Power-to-weight ratio 5.68 lb/hp
Maximum hp 330 HP
Steering system Rack and pinion

suspension, wheels & brakes

Front brakes Disc
Rear brakes Disc

physical dimensions

Curb weight 1,874 lb
Width 50.3 in
Height 50.6 in
Length 94.5 in
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