bellhousing spacer

anyone have to use a spacer between there 727 to 440 block for proper torque converter clearance if so where did you get it all i see in summit is a midplate. Had my converter rebuilt and old drive hub was worn converter shop says to check for a 1/16to 1/8 clearance between flex plate and converter any thoughts on this old motor was a 383 now will be 440 with same tranny and converter rebuilt. may not even be an issue since i havnt bolted them together yet just looking for input. thank you Roger.