Engine Mount Differences?

1964 Valiant 2 door seedan originally a 170 three on the tree, now a 68 225 and late A230 but still thee on the tree.

Seems I remember reading somewhere these cars have different engine mounts from the 170 to the 225. Is that right, or am I imagining things? I got the engine in the car and it's sitting on the 170 mounts. It's level.....for a slant six. lol Does the 225 require a different mount? If it does, what's the difference? Thank you drive through.