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General data  
Year/s of production 1971 – 1973
Presentation Maranello, 12 December 1970, S/N 0876
VIN span 0876 – 0898
Number produced 12
Design Ferrari
Manufactured by Cigala
   
Technical specifications  
Chassis 623 – Tube frame, half monocoque made of aluminium sheets
Length Approx. 3665 mm
Width Approx. 1950 mm
Height Approx. 925 mm
Wheelbase 2220 mm End of 1972 extended to 2340 mm
Front suspension Independent wheel suspension, double delta wishbones, telescope shock absorbers, anti-roll bar
Rear suspension Independent wheel suspension, a-arms, double trailing links, coaxial telescope shock absorbers, anti-roll bar
Front track 1425 mm
Rear track 1400 mm Later 1448 and 1486 mm
Front tyres Campagnolo race rims – magnesium-aluminium alloy Tyres: Firestone 5.0 x 20.0 x 13 in.
Rear tyres Campagnolo race rims – magnesium-aluminium alloy Tyres: Firestone 13.0 x 20.0 x 15 in.
Front brakes Ventilated disc brakes by Girling, mounted on the wheel trunk
Rear brakes Ventilated disc brakes by Girling, mounted on the wheel trunk
Weight Approx. 650 kg
Body material Composite materials and fiberglas
Body type Race spyder – two seats, long or short rear end
   
Engine  
Type 623 – Forghieri mid-engine  – F1 312 B engine
Number of cylinders V12 – 180°
Displacement 2992 ccm
Bore and stroke 78,5 x 51,5 mm End of 1972: 80 x 49,6 mm
Camshaft 2 overhead per cylinder bank
Valves 4 per cylinder
Compression ratio 11,5:1
Ignition Dinoplex by Magneti Marelli
Lubrication Dry sump lubrication, oil cooler
Maximum power Approx. 450 – 470 hp – 12.000 rpm
Maximum torque
Fuel management Mechanical injection by Lucas
Gearbox 5 gears + rev., unsynchronised, limited slip differential, longitudinal installed
   
Performance  
Top speed Approx. 320 km/h
   
VINs  
  0876, 0878, 0880, 0882, 0884, 0886, 0888, 0890, 0892, 0894, 0896, 0898
Good to know:

  • S/N 0876 completely destroyed  – accident/fire – during the 1000 km of Argentina race 1971. Never rebuilt again. Ignazio Giunt died in that accident
  • S/N 0884: Targa Florio winner 1972, Racing drivers: Arturo Merzario/Sandro Munari, no 3
  • S/N 0888: Most successful 312 PB: 5 victories,  1 second place and 1 third place
  • S/N 0898: No racing history –  Parts used for S/N 0884.
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