I searched here but did not find what I was looking for.

Are there any special considerations for building an aluminum hemi for a street car? I am thinking 528-540 cubes with either a Keith black block or an iron Bulldog block. I like the fact that the Keith black would be easier to repair and that a new set of sleeves and you can rebuild indefinitely.

I have never had anything like this before. What considerations should I be aware of? Sealing, etc? Valve lash changing? If I need to give more information let me know. I would like to build an 800 hp street motor with room to grow later on.

Thank you all for your time.