Thanks to all for the info. How much do you think this may affect my compression ratio? Now at 10.3 to 1 w/ indy EZ 75 cc chamber. Of course the motor isn't built yet but the block is at the shop and the stroker kit is on the way from Hughes. The piston is an icon w/ 26.7 cc "D" dish and 1/2 flat top for quench. Suppose the only way to know is do some measuring similar to the way you would cc the head, or am I just splitting hairs here? This is the 2nd block I have taken to the shop, the first one showed a crack after a magnaflux check.