The question doesn't make sense. In the most literal translation of this question, one would seem to be asked to make a direct conversion from volume to power, in the same sense you might convert inches to centimeters. But this is akin to asking, how many wrenches are in a bowl of soup?
But what I think is likely meant here is a question about how many horsepower are generated by an engine with a cylinder displacement of 610 cubic centimeters. While better, this question wouldn't really make sense either, because there are so many factors that go into producing horsepower. For instance, the type of lubricant used, the tightness of the valves, the diameter of the cam shaft, etc. Horsepower is a product of all the components of the drive train. Displacement is only one factor. Generally, most production motorcycle engines of 600cc put out about 100 horsepower.
But really, it's torque that matters.
the cubic centimeters of 6.5 horse power is 175 cc
Cubic centimeters are a measure of volume. Horsepower is the English Unit of a measure of work done in a certain amount of time. There is no conversion from cubic centimeters to horsepower. Neither is there a conversion from cubic centimeters to watts, which is the metric system unit of measurement for power.
I don't think that horse power and cubic centimeters are directly proportional. Horsepower is a unit of measurement for work. However, cubic centimeters is one part of the equation of the output of a conventional gasoline engine, other parts would be air input, exhaust output, fuel ratio, etc...
1,000,000 cubic centimeters
1728 cubic inches = 28316.8 cubic centimeters
28,316.85 cubic centimeters.
2,359.7 cubic centimeters.
22,653,477.3 cubic centimeters.
15
0.00317 cubic meters = 1000000 x 0.00317 cubic centimeters = 3170 cubic centimeters
8477 cubic centimeters are 517.298278691 cubic inches.
16.387 cubic centimeters per cubic inch.