If you are interested in VIA’s F40PH-2 engines, you need to visit this site. It has prototype photos, a modeler’s “how to” page, and rivet-counting detail photos for the common VIA units.
As well, under the “for sale” link you can see they are planning on offering a brass sheet of detail parts to superdetail your Walthers, Kato or Life-Like F40PH-2.
Check it out!