What size rings?

Well, a little digging found that those Summit rings are apparently oversize rings for a LS engine. The stock hemi ring is evidently 3.917, not 3.918, so I'd have to file them to get them to stock specs. I've found a part number for the hemi rings from Mahle (41904CP), but can't seem to find anyone who sells them.

I really hate the dealer here because they way overcharge for anything. They wanted $2.70 per bolt for the connecting rod bolts, $5 for the special truck main stud that mounts the pickup, and $4 for the dang nut that goes on that stud. They want $290 for a full set of rings, there is no way I'm going to pay that much for them, that's ridiculous. I've seen performance rings for less than $200, there has got to be someone that sells stock rings for a reasonable price.