Peter Ransom sent pictures of an engine he is trying to identify. Our first thoughts were Buick but then we found out the capacity of the cylinder was much smaller. It is a nifty little engine. So who can help Peter: 'Identification of this little engine has proved troublesome - nobody can say what it is! It's estimated to be around 1000cc. Clues that might be helpful include exposed overhead valve pushrods and rockers, engine and clutch/transmission running in the same oil, no fan or water pump. The letters SM are cast into the the block and head. The letter Z also appears on the block. Block and head are cast iron while the sump and timing cover are aluminium. It seems possible that the engine doesn't actually belong to the chopped chassis."