Trying to identify year and model

[Rassa]

All major identification plates have been taken off. It says OHC 750 on the top casting and I am yet to find any other identification. Are there any major clues to find what year and model/other information about the exact engine I'm working with? I've also only got the engine, nothing else.

 

[dirtdigger]

should be number stamped on pad by starter.

 

[dirtdigger]

Send some pictures might be able to help out.

 

[Rassa]

should be number stamped on pad by starter.

That pad by the starter is smooth, so it must have been never stamped or a label was removed

 

[Rassa]

Send some pictures might be able to help out.

Those are the best ones I had, I searched up the labels on that plate for a while and found nothing.

 

[dirtdigger]

No stamping on the cases means it is a set of replacement cases, dealers were supposed to stamp the number of the old cases onto the new ones. Rare case would be someone bought a set of cases and built up an engine themselves but that normally only happened when building a racing motor of some sort etc. By the head it is K3 or earlier

 

[Rod]

Can you check with the State of California?