Prop Hub Length Vs Engine Type

[Baloo]

With the engine swap underway I am trying to figure out what to do for a prop.

Details: Lyc IO-360 & Bearhawk Factory Engine Mount Out
Lyc IO-540 & Bearhawk Factory Engine Mount In

Question: If I am using a Bearhawk Factory Engine mount for both engines will my Engine > Prop Mounting Flange be in the same place relative to the nose bowl for the sake of propeller/spinner installation?

[Battson]

Question: If I am using a Bearhawk Factory Engine mount for both engines will my Engine > Prop Mounting Flange be in the same place relative to the nose bowl for the sake of propeller/spinner installation?

I think you'd be pretty lucky if they matched up perfectly, and the prop spinner is they key thing which determines the length of the cowl...
But that might not be an issue, I seem to recall your machine had generous spinner-to-nosebowl clearance to begin with?