Engine mounts 318 - 360

I guess my brother and I were lucky...this is the driver side mount on his new 340, plucked from the 360 that was installed in his '72 Scamp before...I'm pretty sure this is originally a 318 mount with some washers used to take up the difference.

The biscuit is located on the rear side of that mount. It should be front side. See the mounts pictured above for orientation.

Could also drill fresh holes to orient it properly.