The mount is two seperate pieces. The engine itself is pretty perpindicular, but as I said, the mounts arn't perpindicular to the firewall, because when I drilled the holes in them to mount the engine, on each side the two holes arn't lined up exactly, so both of the mounts are angled inwards. In other words, if you were to imagine the firewall as a base and the mounts as sides, they would eventually make a triangle if you followed the line they made.