1955 Ferrari 376 S

The 376 S is the very first sports car with a six-cylinder in-line engine, although another three-litre 306 engine was also built but never used in competition.

All of Ferrari’s six-cylinder in-line engines were really extrapolations of the four-cylinders twin over head cam lampredi engine, sharing the same bore and stroke with a piston displacement of about one and a half times the size of the latter.

The 37 of the name 376 refers to the piston displacement, while the 6 refers to the number of cylinders. A system Ferrari have used, in a few variations right up to present day to name new Ferrari models.

Ferrari 376 S Technical Specifications

Year of Manufacture – 1955

type front, longitudinal, in-line six
bore/stroke 94 x 90 mm
unitary displacement 624.58 cc
total displacement 3747.48 cc
compression ratio 8 : 1
maximum power 206 kW (280 hp) at 6200 rpm
power per litre 75 hp/l
maximum torque
valve actuation twin overhead camshaft, two valves per cylinder
fuel feed three Weber 58 DCOA/3 carburettors
ignition twin spark plugs per cylinder, two coils
lubrication dry sump
clutch multi-plate
frame tubular steel
front suspension independent, unequal-length wishbones, coil springs, hydraulic shock absorbers, anti-roll bar
rear suspension de Dion, twin radius arms, transverse leaf spring, hydraulic shock absorbers
brakes drums
transmission 5-speed + reverse
steering worm and sector
fuel tank capacity 150 litres
front tyres 5.50 x 16
rear tyres 7.00 x 16
type two-seater, spider
wheelbase 2400 mm
front track 1316 mm
rear track 1284 mm
weight 850 kg (dry)
top speed
acceleration 0-100 km/h
0-400 m
0-1000 m

Ferrari 376 S Servicing