Bush Hog Papa, I am wondering if you could list the part number or actual name of the non hardening sealer that you use for sleeves. Do you apply it on the oring area before installing or after? I have had alot of problems with the sleeves. Apparently the bores in the block are out of spec because after I install the sleeves in the block, I get undersized piston bores at the oring area and I have as much as .004 out of round after installing the sleeves. I tried to straighten it out with my over the counter Lisle hone but am now buying a couple new sleeves for round 2 of the battle. The specs for the bore from Reliance was 4.468-4.470 and flange groove depth of .242. My bores are anywhere from .003-.015 larger than those numbers. What do I do now? Im assuming they at least have to be round so as not to influence the sleeve to be out of round? I was expecting the block bores to be undersized. What do I do now? This is my first sleeved engine and it has been a learning experience to say the least. Help!!