Originally Posted by Cpig

Yes Ben, in fact, I had that same 3-bladed prop on my Spitfire and you have to do the same thing, drill the hub out to match your engine bolt pattern. Note on that prop assembly, the indexing marks that they had on mine to mark blade pitch were not accurate at all so I used a piece of scrap triangle wood stock to make a jig so I could get the exact same pitch on all blades. You'll also have to balance to minimize shaking your plane apart. The props hold their pitch well under the compression the the hub bolts provide. That prop worked great tho, I loved it.