Lets play the guess what happened game.
the problem is the rings/cyl walls are worn in. new rings won't seal.
the other thing that would worry me is the stress on the crank when the rods bent. you should at least have that checked.
so, you are probably looking at a rebuild if you want it done right. In addition, you're obviously running on the edge of what those rods can handle. sounds like it's time to upgrade.
i can't tell what version of OEM rods you're running, but it may be worth considering finding a used gen IV bottom end with the newer style rods and just swapping stuff out.
