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275 GTB

The 275 GTB is one of the mainstays of our workshops here at GTO Engineering. The berlinetta was unveiled to the public at the 1964 Paris Motor Show replacing the 250 GT Lusso. Key to its development were the new features of a rear-mounted gearbox and independent rear suspension.  These were new for road car production, however,  Ferrari had plenty of previous experience of these features in their competition cars.

An argento 275 GTB on the driveway at GTO House
An argento 275 GTB on the driveway at GTO House

The 275 GTB was much more aggressively styled than the 250 GT Lusso, with a larger radiator opening, with the iconic egg crate grille and deeply recessed headlights under Plexiglass covers. The body featured powerful curves with overall lines that had echoes of the 250 GTO, with a long forward section and a set back cabin falling sharply into the short Kamm tail, carrying circular combination tail/turn light units on a lightly recessed panel similar to that of its predecessor. 

Capturing the rear haunches of the 275 GTB in the sunshine
Capturing the rear haunches of the 275 GTB in the sunshine

A year after its introduction the model underwent a facelift, which was again shown for the first time at the Paris Motor Show. The most noticeable revision was the provision of a new longer slimmer nose, with a flat bonnet replacing the lightly raised centre section unit on the “short nose” car. At the same time the size of the rear screen was increased, and the boot lid hinges became external to increase the capacity within. The models are generally referred to today as “short nose” or “long nose” two cam models.

The exquisite 275 GTB interior and dashboard
The exquisite 275 GTB interior and dashboard

The engine had an increased capacity derivation of the single overhead camshaft per bank V12 Colombo designed “short” block unit with a bore and stroke of 77mm x 58.8mm. It was fitted with a bank of either three twin choke Weber 40 DCZ/6 or 40 DFI/1 carburettors, or the optional six Weber 40 DCN3 assembly, with a twin coil and rear of engine mounted distributors ignition system, to produce a claimed 280bhp.

We are expert in the model having carried out ground-up, bare-metal restorations on a number of 275 GTB. We pride ourselves in preserving originality with many of our engineers being the first restorer of unmolested examples stretching back over the last thirty years.

Engine

Type: front, longitudinal 60⁰ V12
Bore and Stroke: 77 x 58.8mm
Total Displacement: 3,286cc
Compression Ratio: 9.2:1
Maximum Power: 276bhp at 7,600rpm

Chassis and Suspension

Frame: tubular steel
Front Suspension: independent, unequal-length wishbones, coil springs, telescopic shock absorbers, anti-roll bar
Rear Suspension: independent, unequal-length wishbones, coil springs, telescopic shock absorbers, anti-roll bar
Brakes: discs
Gearbox: 5 speed + reverse
Front Tyres: 195 or 205 x 14
Rear Tyres: 195 or 205 x 14
Fuel Tank: 94 litres – 20.6 gallons

Dimensions and Weight

Type: berlinetta
Wheelbase: 2,400mm
Front Track: 1,377mm
Rear Track: 1,393mm
Dry Weight: 1,100kg

Performance

Maximum Speed: 160 mph - 258 km/h