[olddog]

There are 748 watts = 1 Hp or 0.747 Kw = 1 Hp.

I do not recall the exact coversion from ltr to cubic inches but as a loose rule of thumb I use 60 cubic inch per ltr. I little bit more accurate conversion the 1200 cc (1.2 ltr) Harley Davidson engine is 74 cubic inches, so that would be 61.7 cubic inch per ltr.