JeffB Posted @
I moderate the 52-56 Ford owners group on the HAMB,many of us have done SBF swaps in these Fords,I have a '54 Customline with a 5.0 and AOD so here is the real deal on mounts, you can use 1977 Ford F-150 mounts and they will drop right into place,an AOD or C-4 will line up with the 54-56 transmission crossmember, use a Geniuine Suspension transmission mount (see pic#1) my AOD is hooked up to the stock rear using a 1986 Crown Vic drive shaft using a NEAPCO conversion u-joint to mate it to the '54 rear(pic#2).
The 289-302-5.0 swap is best to do because the exhaust manifolds are very close to the A-frames and steering box the added width of the 351W will make for a challenge,oddly enough the FE motors would fit better than the 351 due to manifold placement,here is a pic of my Ford note the clearance to the steering box.
Also you must use a front sump pan like 65-68 Mustang.You can see I used a mini-starter from DB Electrical for even more clearance to the exhaust,there are a few more tricks to make this an easier swap,feel free to pm me for info.I see that I responded to an old post but there are more of these Fords getting noticed lately so now info is out there.
SOURCE -
https://www.hotrodders.com/forum/55-ford-fairlane-engine-trans-swap-83526.html