Being a bitch, fully assebled shortblock with reused factory hardware, new ACL standard bearings, polished crank (not cut) and total seal rings. All specs were done from tsrm, and i used a craftsman tq wrench and clevite assembly lube, liberally lol. I dipped the pistons and rings in oil befor pushing them down into the block with a deadblow hammer. My first red flag was how tremendously hard the #6 piston was to get down in there, it would go all the way down until the las ring or so, they weren't popping out of the ring compressor, i checked several times. But after a long bludgeoning, it finally went in. everything was torqed to spec, in proper order. And its TERRIBLY hard to turn the motor over, even with the head off still. It takes a pretty good sized ratchet to get her going. Any ideas on the difficulty of the #6 piston, when all the others were easy as pie? And is this linked to the hard rotating assembly, and could that possibly be a problem?