I have used Total Seal gapless rings on other engines before, with awesome results. I just put them on my 230 but it is not together yet. They work well in applications where cylinder pressures are more or less in the normal range, may not be good for turbo/superchargers. I used them in a high compression high revving engine and could not be happier.
On piston wrist pin removal: if you don't have a press, you can make a wrist pin puller tool:
I made the "receiver" pipe out of PVC pipe, worked just as good. On pistons where the wrist pin hole is on the curved side, you just shape the end of the receiver pipe to follow the shape of the piston. Same tool removes and installs the pin.
