Engine Mount Bolts

["Ben Prince" <blprince2@comcast.net>]

On the BN1, what size bolts (diameter and threads) hold the engine-mount to
the block?   These two bolts are on the bottom of each engine-mount assembly.

Having just replaced the engine-mounts, I am having a most difficult time
getting these bolts started.  Perhaps I mixed up the bolts and I am trying to
insert the wrong ones.

Also, I'd appreciate any other advice on how to get the bolts started.

Many thanks,
Ben