[Alan Roehrich]

The gapless top ring is fine. Call Keith Jones at Total Seal and get his recommendation for your specific combination.

I do not use a gapless second ring, as it prevents any gasses that get by the top ring from escaping, that unseats the top ring from the bottom of the top land, causing it to flutter and leak. What little does get by will help the oil ring seal, and won't hurt anything. If the top ring is allowing much of anything to get past, the second ring won't help, even if it is gapless. The function of the second ring is to pull a vacuum on the cylinder, and remove any excess oil that the oil ring doesn't get.