What size rings?

Yeah, I was just thinking about him. I know he gets a lot of his stock parts from dealers though, so not sure how much of a discount he could get me, I'll probably shoot him an email though. How horrible would it be to run the LS rings in the hemi? The thicknesses are the same and the bore size is dang close, so I could probably do something about that. Are there any other numbers I should be concerned with that would affect fitment? All the hemi stuff I find is $160+, but the LS rings are only about $100.