Look at the second post above, they are all pinch bolt rods. The pins in the pistons you have are tight because they need to be pin fitted with a hone by a machine shop before they can be used. They are considered non-floating pins because of how they function in the connecting rods.
You just aren't understanding the correct terminology for the rods. Floating means the wrist pins float freely inside the S/E of the rods and the piston has some form of lock rings to keep the pins in place in the pistons.
Press fit means they do not turn freely inside the S/E of the rods are held solid in the rods S/E by either an interference fit or other methods such as a pinchbolt.
