I have a question. I want to know whats the bigest bore I can have with a B series motor? is it posible to have the same maximum bore with all the B series motors or is the CRV B20 the best candidate, I wont be using turbo or NOS all I will be doing is making it rev hard 9000 RPM. I know I need steel sleevs but do I need fill and seal the space between the block and the piston walls to make it stronger?