The largest engines
fitted onto cars have a displacement of between 6.5 to 8.4 liters.
The one you need, however, is more or less half the amount.
While engine
displacement is an acceptable indication of power, it's also a
measure of fuel economy. If the biggest engine in the market, the V10
in an SRT Viper supercar, has an 8.4-liter displacement, it means it
would consume around 8.4 liters of gas in one cycle. Each of its ten
cylinders would eat up 0.84 liters or 84 cc of fuel.