the rod that goes threw the top of the connecting rod and in the piston is VERY VERY snug going threw the rod, but not the piston, not i doubt it will move around on the rod, but of course it will on the piston.

So.. is this right.. or should bolth the rod side move, and the piston side as well..

 

man you gotta remember tight tolerences are good here but not to tight if its too loose it will bang that wrist pin clean outa the piston if its way to tight which is problly isnt it'll seize. In all its fine i think wrist pin sizes and rod sizes if ordered for the same motor are machined to spec use some lube to put it in.