Correct motor mounts brackets for 340 .. Help !!

With the naked eye, im going with 318 mounts.
The right or passenger 318 mount is the same for a 340. So you are good there.
Its the left or drivers side mount that is different.
You will need to find a left 340 A-body mount.
There is other ways to do it, including using washers, but im not a fan.
I prefer using the correct 340 mount.[/QUOTE
Is da left side mount hard to find !? Where can I look !?