CNC-dude ~ I've never attempted even 600HP before. I would LOVE guidance on the requirements to achieve even that!
I know I have to do the following...
Align hone
Deck the block
O-ring the block
Lighten the rotating assembly and balance
Harmonic
Enlarge the push rod openings to accept larger rods
Head work - screw in 7/16" studs, oversize valves, port dividers with matching port work, possibly a stud girdle, roller rockers.
I have no concerns with the bottom end... 7 mains should go a long way in helping it out!
But what else do I need to do? I will prep the block (grind the flash off and de-burr everything.
Efi-diy ~ I've not purchased the engine yet, but a deal has been made for $250... the owner is never going to use it and it came as a package deal with another engine he did want.