A lot of ID tags have a separate SVO section that is left blank
It wouldn't worry me if a Capri was a re shell - as long as I struggled to pick it - just good another one well saved. A half baked 4 cyl conversion deserves to be canned.
The matching numbers angle does nothing for me - a nicely presented v6 Capri is enough. I never look at engine numbers at a concourse - seems a bit over the top