Need a new tranny and at 310 rwhp and 380 rwtq the 60 is gone. I want to get an 80, I know I will need a new converter (damn just got this one for the 60) and a new bellhouse (right??) what else and how much am i looking at

 

I've got a 4L60E for sell that should hold up to that much power.What broke on the transmission?Your converter may be fine.