Obviously. You have to have sleeves in an auminum block.
Most modern engines dont have enough meat in them to get much from a dry sleeve without weakening the cylinder walls significantly.
What I meant was punching it out into the water jacket and putting in a new wet sleeve.
I would be more inclined to make custom pistons with the wrist pin moved up inside the scraper ring. Should provide a fair bit of added rod length.
Or, if youre already sleeving, weld on a deck plate to get some serious added length. The only problem would be that the intake manifold, exhaust, timing chain, and god knows what else, would no longer fit.
Hearing a cross plane V8 at 10k would be very cool though. I know its been far exceeded with flat plane engines, but Im not sure how high anybody has reliably reved a cross plane.