[/quote]Did this short engine have the riveted tag hanging of the side? [quote]

The blue metal tag that would have shed light on the 4 digit corresponding number for the block was gone.
The "bard" ( Chryslers' term for the rivet ) that held it there was present but the tag had been pried or broken off and was gone.
This 4 page oil soaked instruction sheet was present in the valley of the block.