well honestly, my bore is at its max size. My gaps are a little larger than I'd like, but the alternative is to bore, new pistons, oversize rings......and being that these blocks are hard to find, I don't want to bore until I have to. I just thought it was odd that Sealed Power's data doesn't match what was in the box. Problem is now I have to pull a piston out, and swap the rings on that on because I have them the other way around.