I am running a PA SFI bell housing. depends on what size convertor you are running. i believe the PA bel housing will fit both sizes but if you have a 11" or smaller convertor then you are definately a 157 tooth. I am running a 9.5" Convertor and a 157 tooth flexplate. The starter should not be an issue. My aftermarket starter fits both 157 and 164 tooth flexplate so I bleive it is all on convertor size...