Sure are fiddly things.
I got the top and bottom case sealed back up, put the pistons on the conrods and installed the wrist pins.
Then I dropped the wrist pin clip down into the case.
One beer later, I had the clip out, the case sealed back up, and now the motor is being held at an angle so that the clips will drop to ground (and roll under the car) rather than into the case.
Any hints on how to get these b@st@rds in without destroying them, scoring the aluminum piston, or having them rocket across the garage, a la Jesusclips?