Cause the deck is off bank to bank.
You can cut the pistons down without fear of balance (would be slightly overbalanced which is fine) but I think you were looking for a specific compression ratio in your other thread. No idea where that would put you compression wise for what you wanted.
If flat top then it's simple.
If dome....cut the deck area (flat area) what you need to. Then put the cylinder head on with no gasket. If the piston clears the head with no gasket then you are good to go. Otherwise you will have to cut the piston dome a little. Doubt that will happen.
The only blab's I will even be a part of is just when it is me they are talking about. Aaaah yes I can see a few good looking shiny tall deck motors on the beach, with barely enough fuel to get back to the launch saying, "Holy crap how fast you think that Daytona was going man? That's like the 20th time he's gone by today?"