Thats about the best deal you will find other than Passion.The cylinders you are asking about are plated and come with the stock cub port set-up.With good reeds,carbs,pipes,and head,You could see as much as 95hp from the stock port set-up.
I may be able to throw in some 40 over 795 series pistons if I can find them.Probably gonna need new rings though.I will see if I can find them and take some pictures.