I ordered that kit your looking at, plus I got the block also. 4 bolt main 1 piece rmc. I assembled it about 3 weeks ago. The bores, mains, rods, pistons, everything mic'd perfect. Block clearancing, excellent.
The H-beam rods are Pro Comp. I spent about a week or so researching these rods before I ordered. I read tons of bad reviews on them by people that haven't actually ran them. Only hearsay. Now, I'm sure there are some real failures, I just didn't run onto them.
I found a few that have ran them and they were pleased. I figure for an engine that will probably never see about 5500 rpm, they should work out fine for me. They come with 8640 manley bolts.