So, ITM Engine Components has responded to my email about the cylinder head that they offer on eBay.

https://www.ebay.com/itm/13293544992...84.m1436.l2648

They said that they can't see where the 2.6l was offered in the 1980 D50. I assured them that I do in fact have a 2.6l engine. From what I can see in the only picture in the listing, the rear of my valve cover will not work with the head they offer... has anyone else ran into this issue with the flat valve cover and the half circle openings for the cam install?
20200218_174745.jpg 20200218_175257.jpg 60-3000.jpg 20200218_174723.jpg

There doesn't seem to be any newer style valve covers available on eBay or anywhere online that I have been able to find.

Jeremy