I have put a r5 p7 in my daughters duster bracket car and we have beat the motor to death with no issues so i decided to put one in my 64 plymouth but didn't have an 8 bolt flex plate so i called Eric at JW performance in fl and he made the flex plates and hubs for the 8 bolt and the 2 different 6 bolt plates.So if anyone is considering this combination jw has these in stock and Joey Arrington at REP in N.C makes the adapter plate for a glide and also sb mopar adapter,you will have to drill and tap the plate for standard mopar starter as the jw wheel is standard 130 tooth.REP also has 100 of these motors and tons of parts for them as well.