Well, I think I have a problem, here there is more slack than I said, I will try to put a small video, but I think I have a slack of about 0.03 "

While I don’t find any crankshaft snout to damper clearance specs in the service manual, I look for the two dimensions to be reasonably close to each other without being an interference fit.  My personal limit for the damper hole would be no more than 0.002” larger than the snout.  A 0.0005” interference fit would make the damper tough to install and remove.

Lorena, Texas (South of Waco)

any comments?

What clearance does the harmonic damper have on the crankshaft shaft? I tried mine and I think it has too much.

today has touched a little decoration.

I see that you have already clarified the question about the extra greasing of the distribution chain.
We keep moving forward, I have to reassemble the rocker shaft, I have new rocker shafts, the rocker arm tips have been rectified and new adjustment screws are going to be mounted.
Apart from being careful with the alignment of the grease holes, any other advice? The rockers are all supposed to be the same can be grouped together or do I have to check anything?

The timing chain oil troughs were factory installed on the 1954-1956 Ford Y’s.  I have come across a few 1957 engines with them but by the end of 1956 they were being phased out as a cost cutting measure.  Here’s another picture of the oil trough.
 

Lorena, Texas (South of Waco)

is that a stock part? I have never seen one.

Oil trough for timing chain with oil coming from the lifter galley.

56 VIC  Gene Stoehr Sr.

This is a photo that the OP had posted many pages ago, what is the silver trough thing? not the oil hole with the arrow pointing to it, but the silver item that looks like it is made of sheet metal and is attached with the one phillips screw/bolt ?