I don't think installing the mounts on the wrong side of the car would make a difference. They are the smaller A-body-type ice-cream-sandwich mounts. There is only one part number right-to-left. And they're the mounts supplied by Schumacher with the brackets.

The K-frame is not original to the car. I'm not sure what it came out of, but it's supposedly a "reconditioned" unit for an A-body, A-engine. It came with the car.

The only other thing I can think of is the way the brackets bolt to the engine. Maybe they could be bolted to the rear of the cast-in bosses instead of the front of them. I don't know how I did it or if it can even be done wrong (from what I remember, they would only go on one way). I'm gong to check them when I get home.