s/6 to 440 ? engine mounts

has anyone ran into warpage by using a S6 K-member?

Going to be doing this in a 73 Duster soon. I have both the Shumacher mounts and a motor plate that has already been in the car with a 440. The 6cyl mount towers have been cut for the plate, I also have another K- frame to use with the Shumachers. Will have to see what I will use on mockup.