How much power can a stock AODE/4R70W transmission take? The AODE/4R70W in stock form can typically handle about 25 to 50 horsepower above stock power levels. Before planning many engine mods to an AODE/4R70W equipped vehicle, you should install our AODE Valve Body Kit. Installation of the Valve Body kit will allow 1997 and earlier AODE/4R70W transmissions to perform reliably in a 350 to 375 horspower application. 1998 and later 4R70Ws can handle up to 500 horsepower with just the addition of the Valve Body kit. A stock torque converter in an AOD equipped Mustang will produce a stall speed of about 1800RPM, while the stock 5.0L H.O Stock 5.0L Mustang AOD-E torque converters stall at about 2400 RPM, and will provide significant improvements over an AOD converter http://www.baumannengineering.com/index.htm