Does the 320327 on the sticker on the valve cover correspond to the engine number stamped on the block on the shelf below the coil (like in Poser's picture above)? And what was the casting date stamped on the driver's side of your block?
Something's up, but maybe it's only the sticker on the valve cover.
Something tells me that's an F145 with a valve cover meant for another market, not expressed in SAE.
The numbers are the same on the Sticker and the casting (SOR says built sometime in 1970....) VIN is for 1969 though (frame). 60030 is on the drivers side rear (looks limiliar to Posers 60.. number), on drivers side front is 00615. The front numbers look more crued, like what I would think a casting number would look like.
I would agree with the year. What are your thoughts on the F130 designation? How about that the VIN plate says March 1969. Unoriginal engine? Engine made for different market? Not sure if it corresponds but I have another thread where I am trying to figure out why my grounds are different (only have a ground to the engine from the battery and no evidence of any other).
Just my 2 cents, but when the engine in my FJ40 seized a number of years ago, I replaced it with one of SOR's engines, which supposedly are "low mileage" motors pulled from Japanese (or other?) trucks that were running (head gasket blew and block cracked on that one ).
Since the F125, 135, etc, supposedly (according to engine manual) refers to horsepower at a given RPM (4000 in that era according to my manual), it makes sense that the number would be different in different markets at different standard RPMs. I don't recall seeing that red sticker you have with the engine number on it (maybe someone else does, MOT in Japan might know and he could probably read the sticker) from the rocker cover on any other trucks, so it makes sense that maybe yours was that sort of replacement engine.
I saw your other post and I really think as far as grounding you should just do it the way all of our engines are done. Negative battery lead to the frame (clean up all contact surfaces) in front of the battery (not that it really matters where on the frame). Additional cable between a starter bolt on the block to the frame in back of the battery.