Do you have to resleeve your block if you rebuikd your engine using forged pistons and rods. I am wondering this cause i plan to build a Force Fed frankenstein.

 

From what I've read of H22's, they MUST be sleeved to work with anything other than stock pistons, aside form those freaks, B and D-series motors can be sleeved if you choose, but not neccesarily a must in order to boost a decent amount.