Thanks for the info Gadge. I should buy a copy of Gregory's.
I am actually not sure if the engine I have is an LKV40 to be honest. I purchased the engine block "as is" with no idea of the model number. It is actually the same size as the old VK-30 to my eyes, just with valve ports reversed. Everything looks to be the same size otherwise.
So could my engine be an LKV30 or LKV35??? Was there ever such a beast?
I am not sure if there is any way to tell which engine just by looking at it. lol!