Here is a good pic of the Engine Mount Conversion Plates to get the LSX into any Vehicle that uses Gen I 350 Chevrolet Mounts.
I had to modify the drivers side to get my LT1 Mount to go on it. I had to Drill and Tap another hole, cut the mount a little bit, and cut one of the Lugs off of the Block.

 

any pics on first gen

 

Those plates get it into a Gen I, you unbolt them off of the 350, and they bolt right up to those plates. All necessary Hardware came with the Plates to mount them onto the LSX Block. From there you use the Bolts and Mounts in what ever you are putting it in.

 

ERRRR..... o_0 That only uses 2 bolts to hold the plate onto the block!?

BTW, I like the sig pic update

 

Actually, it uses 4..one is countersunk there in the front, and the other one comes through the mount..

Here are the Mounts Bolted in..the Drivers side was a little custom.

Thanks about the Sig.. I wish I had the programs to do them, I would have some kickass sigs..