Pad & Hole Locations on Chevy Engine Blocks?
 

Can anyone tell me where I might find information for the the mounting pad and hole dimensions/locations on Chevy engine blocks and/or Mopar or Ford blocks for that matter? I'm considering building my own engine test stand that will be capable of accommodating different engine types and was wondering if this information is listed somewhere and available to the general public?

Thanks in advance.
Tim
"Hotrodchev"