PB;
That would do it

(dry) pins.
Tony is right too, if your working in a "really cold" shop. Usually 70F +/- is okay but they MUST be lubed.
There many types of 'assembly' lube for this. The main thing is that you use just SAE 30 oil on the pistons/rings for them to 'seat' properly.
I used STP (bearings etc) when I was doing it as; it insured lubrication till ran a bit. I would use cleaning solvent/kerosine as they have oil in them for cleaning. Laquer thinner/gas are dangerous & clean to good (as demonstrated).
EVERY Mechanic has learned (something) the "hard way" & why they call it; "the school of hard knocks".
Doing it twice has another name. :p