I just bought the $50 set poly motor mounts from Spohn and 2 poly mounts came in, but they are different sizes / dimensions. Are these the motor mounts for both sides (they just have different dimensions) or should I have ordered two sets?

Thanks.

 

The driver side mount is very funky shapped, almost like a triangle. The right side is very similar to the normal SBC mount but has different bolt alignment that makes it cost more than 4X the normal SBC mount.

 

When I got mine, it was just the poly part, I had to drill out the rivets in the mount clam shell and reuse them with supplied nuts/bolts to bolt the clam shells back together.