Autocad drawings of small block Chevy engine?
 

Is there a site that has external dimensions and bolt locations of the block and heads of the small block Chevy engine, like the L98 or earlier?

Thank in advance for your help.

You might try this site...

http://www.hotrodders.com/kb/browselinks.php?c=60

... not that the autocad stuff would be there, but somebody there might know where to find it.

Good luck, and let me know if you find it - would be pretty cool to see.