Bmw E34 M20 Swap To M50

[sainttoall]

Hi there
I have an 89 BMW 525i m20 engine. I have had this baby for 2 years now and done all the work on the car my self. About a year ago the transmission went out on the car, so i changed the transmission from a 4hp22 to a 4hp24 from an 91 525i with an m20 engine. I started noticing the temperature on the car was rising last summer when i installed an oil cooler from a 91 325i. i then installed a bigger radiator from a 750i which solved the problem until a month ago when the car overheated. i put in a new water pump last Sunday. Then the car overheated again on Wednesday night. I am suspecting that it might be the head gasket but i put in a new one 2 years ago when i got the car with head i rebuilt. At this point i am considering changing the engine with an M50 engine from a 92 525i manufactured April 92. My question is will this motor bolt on a 4hp24 tranny.

[winfred]

the zf 4hp24 was the 750 tranny never herd of one in anything else, the m20 and m50 have the same bellhousing bolt pattern but the m50 sits at a different angle and the tranny is clocked to match so it sits level, the m50 used a chevy sourced tranny that was computer controlled