Actually I don't have the engine put back together yet, but I was wondering if there was something I could do now, before it's back in the car, rather than wish I would have, after the fact. It sounds like I don't need to worry about it.
I used the teflon tape method of setting the original type (but new) seal in position. I hope I did it right.
I have new rings to go on new pistons in matched liners, but the pistons are 3-ring type, without the bottom ring as shown in Don's photo. I did have the small end bushing in the rods replaced and resized as the originals had noticeable slop. -not to mention new lifters, (stock) cam, valve job, new guides in the head, timing gears & chain, crank & main bearings...
I'll be happy when it's running, even it does leak a bit. This is the only part of what became a complete restoration that I wanted to do. Finally I get to put the engine together. After it's back in the completed frame, and the 5-speed is attached, I get to finish the body work, paint, put the body back on...
At least I'm no longer waiting on the machine shop.