checking compression ratio

A question was braught up in another of my posts about the compression ratio of the new pistons I just put in. Is there a way to check without having to take them out again? I did see any markings anywhere on them before I put them in. Maybe checking to see how high the dome is from the top of the cylinder or something like that?
img.photobucket.com/albums/v683/donthekawguy/DVC00080.jpg

Post edited by: donthekawguy, at: 2007/05/24 01:31

ive been kinda looking into the same idea as i need to lower compression. one opinion was to cc the piston crown and head to get some real numbers, but wireman might have a set stashed under his bed he could measure for ya:P

I took a look at the MTC site and they have a pic of a piston where the valve cut outs are almost touching at the top of the crown. I'm guessing those are the 12.5-1 pistons.