Klaptrap24;c-144650 wroteDauntless;c-144649 wroteThe best way to get more compression is to use domed or at least flat top pistons. If you take a lot of material off the head, you'll need an adjustable cam gear and maybe even a shorter timing belt. I don't see the point of going to these lengths to reuse a worn out bottom end with dished pistons.
I'm already in possession of both an adj cam gear and shortened timing belt :)
Swapping cylinder heads seems much easier and cheaper than building and swapping in a new motor
In cars "easier" and "cheaper" rarely amount to the best way, and often end in tears. The poor man always pays twice
I tend to agree with dauntless and vee que on this topic.
First principles: you're trying to change some major things on an engine, you can't just do a half job and call it done. You will end up doing it twice.
My other point is, you cannot know what the dynamic compression ratio is, because you do not know when the intake valve begins to close with this cam. How do you know how far up the bore the piston is at when the valve closes? You will need to do some maths. You will also need a camshaft degree wheel, a dial gauge if you want to know what you're doing. Otherwise you can easily just guess it all, buy a whole bunch of parts, slap them together and hope for the best