The normal engine was a 2953cc V12 unit with a single
cam in each bank, two valves per cylinder, an alloy block and heads and
is fed by six Weber 38DCN twin carburettors. It produced 290bhp @ 7,400rpm,
although various levels of race trim gave various results. It was positioned
lower, thanks to a dry sump, and further back than in the SWB, a fact which
enabled the GTO to have a lower and considerably more aerodynamic nose.
The suspension, supposedly for homologation reasons, retained the live
rear axle of the SWB whilst the front used an independent wishbone setup.
With the GTO Ferrari won the World Championship in
1962, 63 and 64, with most famous races falling prey to the GTO including
the Sebring 12 hours in all three years, the Le Mans 24 hours in 62 and
63, the Tour de France in 1964, the Targa Florio in all three years, the
Nurburgring 1000km in 63 and 64 and so on.
A
development of the 250 SWB, the
GT Omologato first appeared in 1962. Developed by Giotto Bizzarrini and
a small team of engineers during 1961, they built a single prototype which
used parts from a variety of then current production cars, as well as a
500TR engine. Some limitations were imposed by the need to homologate the
car as a variant of the SWB. A total of 39 were built, including three
which were fitted with the 4-litre engine. In 1963 three 'second series'
cars were built with an all new body (plus four first series cars which
were converted).
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Technical Details
| Engine | 2953cc (73x58.8mm) 24V V12 sohc (per bank) with 290bhp @ 7,400rpm
compression ratio : 9.8:1 |
| Suspension | front : double wishbones with coil springs plus anti-roll bar
rear : live axle with leaf springs, trailing arms and Watts linkage wheelbase : 2400mm track (front/rear) : 1354mm/1350mm |
| Brakes | discs all round
handbrake on rear wheels |
| Transmission | 5 speed manual with locking differential |
| Dimensions | empty weight : 1,060kg
length : 4325mm width : 1600mm height : 1210mm |
Click here for a cutaway drawing of the 250 GTO.
See our picture gallery index for images from museums, motorshows and events.
There are also wallpapers/desktop backgrounds of various 250s available to download.
Ferrari 250 GTO books : buy them online here(in association with
Amazon)
 Ferrari
250 GTO |
K Bluemel & J Pourret (1999) |
For more books on Ferrari, see our Online Bookstore
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