Maserati Bora 4.9

from 1974 to 1978

From 1974 the Maserati Bora was offered with the 4.9 liter version of the V8 engine, producing 320 hp. Top speed peaked at 273 kph (171 mph). 564 Boras rolled of the production line in eight years, nearly half of them in the 4.9 guise. Among original Bora owners was long-time Maserati customer Karim Aga Khan and movie producer Carlo Ponti, Sophia Loren’s husband.

A racing version of the Bora was developed in 1973 following the French importer Thepenier’s request to compete in Group Four, but at that time – and after extracting over 430 hp from the car – Maserati could not reach the production figure of 500 cars required to obtain its homologation. The oil crisis, combined with new tax restrictions passed by the Italian government, had, in effect, significantly reduced the market for such high performance cars. Production of the Bora stopped in 1978.

Technical Specifications

ModelBora 4.9
Maserati internal codeTipo AM117.49
Production start1974
Number Produced275
IgnitionBosch coil ignition and distributor
Lubricationconcentric gear pump
TransmissionZF 5-speed + reverse synchromesh, rear wheel drive, single dry plate clutch, self-locking differential
Reduction1:3.77
Gear ratiosI=2,58; II=1,52; III=1,04; IV=0,846; V=0,74; R=2,86
Chassisself-supporting body/chassis
Front suspensiontransversal deformable four-side with coil springs, telescopic shock absorbers and stabilizer bar
Rear suspensioncoil springs, telescopic shock absorbers and stabilizer bar
Brakesdual hydraulic high pressure circuit, second mechanical system on rear disks for parking
Brakes front280 mm ventilated disks
Brakes rear280 mm ventilated disks
Steeringrack and pinion with dampers
Cooling systemwater cooled via a centrifugal pump and two electrically-driven fans
Length170 inches (4,335 mm)
Width69.6 inches (1.768 mm)
Height44.6 inches (1,134 mm)
Wheelbase102.3 inches (2,600 mm)
Front track58 inches (1,474 mm)
Rear track56.9 inches (1,447 mm)
Dry weight3,549 lbs (1,610 Kg)
Curb weight4,034 lbs (1,830 Kg)
Tires front205/70 VR 15 Michelin as standard, Pirelli radial on request
Tires rear215/70 VR 15 Michelin as standard, Pirelli radial on request
Wheels7 ½ / 15
Top speed177 mph (285 kmh)
Bodywork2-door 2-seater mid-engine coupé
Fuel tank19.5 Imperial gallon / 25 US gallon (90 liters)
Range400/500 km (320/400 miles)
Production dates1974-1978
Engine90° V8, mounted longitudinally amidships
Bore and stroke93.9x89 mm
Total displacement4,930 cc
Displacements (unitary)616.25 cc
Compression ratio8.5:1
Maximum power330 bhp at 5,500 rpm
Maximum torque49 Kgm at 4,000 rpm (355.5 lbs/ft)
Timing geartwo valves per cylinder, twin overhead camshafts per cylinder bank
Fuel feednaturally aspirated, four Weber 42 DCNF carburetors
Fuel & lubricantN.O 90/100 RM