I'm planning my own 273 build and I'm curious how you got to 9.4:1 with flat pistons. Were the pistons actually flush with the deck, or just close? I can't find any off the shelf 273 flat tops that would give a zero deck.
Was the chamber volume 57cc's before or after milling?
What's the cylinder bore size?
That head gasket is like .050" compressed and I think the bore is like 4.12".
Does anyone know the volume of the valve relief cuts? I can't find anything definitive, but sounds like around 5cc.
