I now have a 727 hanging on my Chrysler Flathead , and that opens a lot of doors. High stall speed converters, tranny brake , hard shift manual valve bodies, mini starters, and "park". Pull the tranny out of the ss/aa car and jam it to the Flathead. I may be racing the old Flathead Chrysler powered Willys this year after a 45 year absence from the track. Might even go s/s springs on the old Willys too!