[T Creighton]

Thanks for that link Richard. Most helpful.

It is a pity the Morris book did not have all those engine particulars. Then it would be so easy to compare.
Some of those Nuffield numbers look familiar though.
I have looked at "Sparex" Nuffield pistons but they do not seem to be flat tops like the Morris truck.
I will go and do some measuring.

Kind regards, Terry