it is..
but keep in mind that this is a serious racing engine..
and that means it'll need maintenance every 4hrs of running time approximately.
HP like this come at a price, and that price is in fact measured in dollars...
not only it's an expensive engine, it's expensive to maintain.
new rings every time, new piston every other time;
a complete rebuild close to every 24hrs of running time...
Honestly.. if you do not intend to race something like this, you should stay clear IMHO.
As he said:
This Kart is not for the faint of heart.
and he means it
'sid