KULTULZ. Yes, I see advantage to using the oil trough for directing the oil onto the gear which in turn distributes the oil onto the chain assembly.
Unfortunately, my understanding is that the oil trough was only originally installed on production y-blocks in model years 1955 and 1956. I've sourced several of these in the past from discarded engines. The trough was originally secured to the engine block by a pan head machine screw. As I write this, I forget the thread size. Drilling and tapping the single hole in the correct block location is easily accomplished. Personally, I use medium strength blue Loctite when installing the single screw. Most would likely agree that isn't needed, but . . .
Remember, the bean counters grilled the engineers and determined that the camshaft counterweight, the sheet metal oil deflection trays under the rocker arm shafts, and the timing chain oil trough were not necessary for the y-block engine beginning with 1957 year production. Happily, the engineers had data from the field by 1959 to determine that there were enough blocks with cracks in the crankshaft main bearing webbing that it was important to increase the length of the bolts used to secure the main bearing caps to avoid having to replace the engine blocks when rebuilding. Rest assured that the change in y-block engine production cost FoMoCo some change . . .
NoShortcuts
a.k.a. Charlie Brown
near Syracuse, New York