360 to FMX transmission Help

billd wrote: Again, it's not an FMX. They are different (no matter what anyone says) the FMX was Ford, the AMCs of that era used a cast iron Borg Warner. They are similar because of the fact Ford and BW developed together for a while then Ford went their own way - and made changes. I have those changes documented - showing the differences between the two. An AMC Torqueflite will bolt right up to a 74 360.

I say the same thing....but I wonder why I even try.

SC/Adam wrote: I have decided not to use the FMX/M11B as parts are hard to come by if something breaks, and now is the time to upgrade I guess.    I pulled the valve covers on the 360 and identified it as 1974 (3220502) Assuming the heads have not been swapped and it is a 74 360 will the torque converter from a 727 still mount properly without modification?  The rear of the crank in has a lip on it towards the center,  I have pictures but am not sure how to post them.   Thanks again for any advice.

That sounds like the newer engine. Look at the pictures in this post http://theamcforum.com/forum/flex-plate-id_topic4832_page8.html and you'll see that the flex plates with the large hole are for a torqueflight and the one's with the small hole are for the BW. If your crank has a large lip to center the TF flexplate, then you're good to go with a 727 but be sure to check for a bushing in it to reduce the size and remove it if it has one. Good luck!

Most of the confusion between the FMX (and earlier Ford autos) and the Borg-Warner autos is that they use the same rebuild kit. They are that similar, but Ford used a different valve body and case - passages are different between the two. The rebuild kit has at least three different valve body gaskets to cover several different models of Ford and Borg-Warner autos -- gaskets are cheap! Some internals in the rotating assembly are interchangeable, and clutches and bands interchange. But not everything. The FMX has the fewest interchangeable parts. The first Ford/BW collaboration trans was called the FX by Ford (Ford-O-Matic in sales brochures, I think), the second was the MX (Cruise-O-Matic? might have FOM and COM swapped!). The FMX is a Ford design based on the best of the FX and MX -- that's why the FMX name. It was still covered under the license with BW and still shared some parts with the older Ford versions and BWs, but was the last Ford auto trans to do so.

The trans type is cast into the top of the case. It is possible that the trans is a M-12 from a 1973 Ford truck. They used the Borg/Warner for part of that year because of a strike at fords trans plant. The Ford Borg/Warners were the same as the AMC with the FMX pump housing and torque converter. Ford double drilled the mounting holes to use on their engines bells. They are very rare and I've only seen two. Both were built back to AMC spec.

Thanks PHAT for posting those. That's what a person trying to learn needs to see.