My engine (383) has been rebuilt and ready to put on test engine stand but problem is - tranny is a 727 - so I figured, just get a bellhousing and wa'la, everything will be ok. Not so, I'm hoping I could just install flex plate, plug converter and install all to test run. Now I'm having doubts that flex plate will not support spinning weight of convert with engine running. There shouldn't be any torque on converter because of no tranny or drive train but, there also won't be any support on back of converter. Should this be a problem, or am I over thinking this thing. Because of no torque, converter should not get fried, oooooor, will it?