And so we proceed with the pillow blocks a little more this evening ....

Oil hole marked up, center drilled, drilled out to 2.5mm and finally tapped 3mm.
I had to hold two together because my make shift parallel "a large HSS lathe tool" was too wide for just the one block.

All four done. Here I'm lapping them all true to size on all sides to each other. I have mounted all four onto a 4.9mm drill bit to line up the crankshaft bores. (at this stage they are drilled to 4.9mm as I will ream them to size later) By lapping not only will they all be the same size externally they will also have their bores in a perfect line when mounted.
Note the use of the now famous lathe bit clamped to the bench. This is to ensure that none of the pieces tries to turn. Give em half the chance and they will...!! It also ensures a square angle is kept between sides.

All done

I'd previously pop marked the bases to help with orientation during each machining process. Just checking they are still there.

Drilling the base mounting holes

All done, I don't currently have a 2.5mm tap, one is on its way so tapping can wait till later.

Now onto some profiling purely for aesthetics. I'm using a semi ball nosed carbide cutter. Tough stuff this brass ya know...!!
OK, it was the only cutter I have with any sort of small radius.....

And the other side

Off to the mini lathe to form the boss's, I chose 1mm for looks.

All done on both sides,
My missus called them "little cameras"
All they need now is the bases tapped and a general de-bur followed by a final clean up.
