Well then, were the engine crossbar bolts installed (from the factory) with the bolt head on the bottom of the bar or on the top? I never liked looking at those threads when the bolt head is on top, but is engine removal easier with bolt head on top?

Install bolts from the bottom. Keeps the ends of the bolt from being damaged by speed bumps and such. That's the way they are drawn in the PET.

Agree with that. Thanks!

on tail shift cars, the bolts are allen head to fit into the recess in the engine bar. installed from the bottom with nut on top. i got the size from PET and used replacements from fasternal. if i remember correctly, Pet shows two different bolts depending on trans type.

Yes