This will depend on the engine type, manufacturer, weather and altitude.
A Honda GCV160 for example produces 4.4hp at 3600rpm.
If you mean HP=Horsepower, and CC= Cubic centimeters then HP does have anything to do with CC's. Cc's are the size of the displacement of the engine. HP is the amount of power the engine produces.
3.3 HP
Volume and HP do not have an absolute direct correlation. Between 4 and 5 HP would be a good guess.
roughly 342 cc's to a 12 hp engine
7.5 hp
how much cc's is a 6.5 hp engine
Number of cc's alone does not tell you HP of an engine.
500cc
The 2009 Volkswagen CC's engine produces 200 hp @ 5100 rpm.
The 2012 Volkswagen CC's engine produces 200 hp @ 5100 rpm.
The 2011 Volkswagen CC's engine produces 200 hp @ 5100 rpm.
The 2014 Volkswagen CC's engine produces 200 hp @ 5100 rpm.