Well... Are you going to keep this motor N/A? Or turbo it at some point? If keeping it N/A you will want a higher comp ratio. I mean it's doable with a turbo and high comp but lower comp is much easier to work with. So that's one thing to think about. If you're going all name brand high end parts look into what ferrea has for our heads valves/springs/locks/retainers.
Also if you plan to turbo, and bore that block out, you risk the chance of blowing out the side walls of your cylinders. If I read articles correctly our walls aren't that thick to begin with.
Reading Mac1's build's over on PT seems like a lot of the stuff he does is legit for a DD considering he boosts the [fizzle] out of his motors and they last for what he does.
Last edited by MX6_DeeDz; 9-22-11 at 0:52.