are the motor mount inserts the same between the small block chevy mounts and the lt1 mounts?

im kind of in a bind i have my motor mount out and is in pretty sad shape i dont want to wait for mounts to be shipped but sbc mounts are easy to come by i could split one of those and put the insert in my lt1 mount im just wondering if that possible

 

You can get some in a couple days from Summit.