Need Help with motor mounts

Swapped in a 340/360 driver side mount and it fell right in. So my suspicions were confirmed about that “short” one being incorrect. Can anyone i.d. it?
Can't say for sure . Here's a couple of pictures from my 72 Scamp 318 mounts. Hopefully you might be able to tell from these pictures.20180504_124814.jpg 20180504_124209.jpg 20180504_124149.jpg