as long as you arent talking about revving to 8k i dont think you should need to resleeve... but you might want to look into a higher volume oil pump.

just get some nice pistons, main studs, and new bearings. ask around and see what bearings people recommend, if OEM will be okay or if you should upgrade.

remember if you want to raise your redline, you are gonna have to do something for engine management, revlimiter at 7k ....