When you have the SD-20 (or newer 410) in combo with the B&C filter adapter you wind up with a spacer on both. Their oil filter adapter gets a 1.4" spacer to clear the engine mount and the SD-20/410 gets a .75" spacer and different shear coupling. It's pretty easy to change out the shear coupling and add the spacer yourself, just give them a call.
Is that the 410 or 460 in the photo above?