The question has been answered.
One of the 3 flat top pistons I listed, deck block/mill heads/gasket thickness to arrive at 10:1...... done.
If you don’t want to mill anything....... you’ll need to have custom pistons made.
Somebody has to have a shelf stock piston with a CH that gets him close to zero deck.
The Ross reverse domes in my 493 needed .007 to zero it with a 76 440 block. It was a 440Source kit and the only thing custom that I recall was the dish volume. The CH was whatever the kit came with for a 4.15 stroke 440 based 493.
Kevin
