Thornycroft Diesels. ?

OG, I am sure that you already know this but Suncruisers were often sold as bare hulls to be fitted out by anyone who fancied it. Therefore I imagine they could have ended up with anything in them. It wouldn't be beyond the imagination that one of these hulls were fitted with a pair of old plodders someone had lying around. Probably best to find out for sure what they are.

They are the 210 HP Cummins units.
 
They are the 210 HP Cummins units.

Cummins B210's longest running marine diesel engine, introduced mid to late 80's and still in current production as Cummins ReCon unit.

Trevor will confirm that engines perform more strongly than marketing name suggests. 210 PROPER Hp with 40 Degree C fuel. In addition rating was always high on 5% tolerance band. Will easily stand shoulder to shoulder with any manufacturers 230 weasel words Metric Hp 25 Degree C fuel engine rating,
 
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