Thanks for the quick replies fellas.
I am not sure my explanation was clear enough. So I will try again.
Eagledriver and Peterfrans;
I'm aware of the need to have the heads surfaced to mate with the new and larger cylinders. I am aware of the need to check for deck heigh clearence and valve pocket clearence. The chamfer cut I am refering to is a small anglular cut done on the outer diameter of the combustion chamber to allow clearence for the dome. I am not talking about the mating surface where the head seals to the cylinder which is where one would normally adjust the deck height by machining the head. Also aware of altering deck height with varoius thickness base gaskets.
Bill Verberg;
I suspect you got my drift.
I have a attached a crude sketch to try to illustrate my point.
Thanks, Scott