Lister HRW3

Had a lister stw3 30hp in my old swanson
Weighted about 3 times the Weight of a modern 30hp max revs 2300rpm very smooth motor and it was hard bolted to the boat without engine mounts
Very realible always started 1st time no matter how cold it was even though there are no glow plugs nothing ever whent wrong with it in the 5 years I owned the boat
the guy I bought the boat from owned it for 35years and said it has always started 1st time nothing has ever gone wrong with it and has needed no maintenance other than servicing I can say the same all I had to do it was service it and replace the jabasco water pump