Won't fix anything but top end, bike I bought had the same thing... I have 2615 in the engine alone... 700 in crank and rings, 200 in random stuff like oil pump water pump chains etc, 600 in having the bottom end labor done, 200 in a trade/purchase on used cylinders and pistons from a guy doing a 840 upgrade on a new bike,400 in having heads redone and ultra sonic cleaned, and about 500 in other random parts from upgrading gaskets to moly grease to shipping costs and gas driving to and from VA to drop off and pick up the bottom end... I would budget 2k and that's stock, if you go bbk I say an extra grand for the kit then you got to figure cams and probably should upgrade valve springs and valves too