Trying to figure out if this boss 302 block is from a eliminator or mustang. DOZE-6015-A
9F25 date
5916 on pad at rear of block i don’t think this is a partial vin stamping.
0F91G505916 would not be a valid vin. It is probably from a Mustang.
It’s not a 6 digit number I don’t think its a partial vin stamp the numbers are spaced far apart.
My assumptions were as follows. You made no mention of spacing.. Can you post a picture of the partial or at least try to describe how the spacing is? 9F25 date on a D0ZE block is June 25, 1969, so that would lead me to believe that it was used in a vehicle produced no later that mid October.
Do you know what area of the country the block was found in?
Also, 0F91G500916 is also not a valid vin.
I thought my 70 drivers side rear engine block stamp wasn’t the 6 digit VIN sequence number either until I wire brushed off all the blue paint and got a magnified picture, All 6 digits were now visible, but the spacing was all over the place, some digits too low, some too high, some overlapping, and some very lightly stamped. Just mentioning this in case the same for your car.