Restoring a 1993 Vauxhall Carlton (Opel Omega A) - How bad could this overheated engine be?

In this video, we assess the situation of my 2.3TD Vauxhall Carlton (sold as the Opel Omega in European markets, and Chevrolet Omega in South America). We determine the cause of a rough idle and smoky exhaust being a head and block in dire condition.
Airport Lounge - Disco Ultralounge by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 licence. creativecommons.org/licenses/...
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[@ThatOpelVectraC]

They had this engine in the Vauxhall senator mk1

[@virnuls]

Yes! and before that the Bedford CF I believe.