POLYLOC MOTOR MOUNTS
Hillbilly unbreakable motor mounts $5.
Buy a stock mount. On the offset bolts, cut one stud off with a sawzall. Drill it out all the way through to the other side. Put a carriage bolt through mount and tack weld the head. You now have an unbreakable motor mount since one bolt goes all the way through.
If you use a nylon lock nut and leave it a little loose, then you still have a rubber mount to damp vibrations.
If you are a really cheap hillbilly like me, you just use the one you have.