1968 Engine Identification

[Mosesatm]

Any ideas what this engine is? Since it’s cast with “395”could it be an M400? Could it be a Mexican block?
Does the date cast say June 29, 1970?
This thing is weird!!

Thanks

 

[Mosesatm]

 

[rvrtrash]

It doesn't have the correct water passage at the front for the C/M series engines that I've seen, so I don't think it's a 400M. What is the bore diameter? If you could give the bore and main bearing diameters, it should be easier to track down. It may be a Mercury boat motor as well. Their engines are a little different.

 

[J_Speegle]

Any ideas what this engine is? Since it’s cast with “395”could it be an M400? Could it be a Mexican block?
Does the date cast say June 29, 1970?
This thing is weird!!

Thanks

Isn't that the "hecho en mexico" emblem cast right in the lifter valley?

Don't know it size or application from the information posted nor do I know much about all the engines cast down there decades ago

 

[Mosesatm]

I think it is, but can’t quite tell. This isn’t my engine, I’m trying to identify it for someone online. Being a Mexican block would explain why nothing seems familiar.

 

[stangfan]

Don't the Mexican blocks have a higher nickel content?