I did one into a '68 Dart Sedan.
Member "ski" on BBD (not sure if he's here) has a 5.2 in a '65 Dart, also.
Ski's is the better conversion, as his wiring was all nice and pretty, mine was more or less a hacked up mess (CAREFULLY HACKED, mind you!) that worked.
The installation of the engine is really straightforward, you just use stock 272 mounting pieces, with a '70-'72 A body V-8 Radiator, but in your case the exhaust manifolds will be tricky, unless you want to delete the E.G.R., at which point you can simply use the stock 273 manifolds for your application.
Otherwise you can make the passenger's side Magnum (E.G.R. side) clear the fenderwell.
You might want to confer with ski to confirm which manifold clears his '65.
When I did mine, a '93 360, I started with a running and correctly functioning system and slowly, systematically, weeded out the non-essential wiring, leaving E.G.R., ignition, fuel and fuel/egr related sensors (T.P.S., MAP, MAF, etc), along with crank sensor.
I also kept speed sensor and O2 sensors.
It was basically a "Cut a few wires, start the engine, and repeat" process.
It took me 3 careful days, with a few tense moments.
The trick is to identify the items you DON'T want to remove, say #1 injector wiring, or crank sensor wiring.
As in some religions, it's all about isolation and the ability to perform it correctly.
Keep in mind that the temperature and oil sensors can be wired into the stock guages via stock wiring, as they use the same voltages and sender resistance is the same.
A voltmeter should be used, instead of an ammeter, to show charge.
I was at one time going to refine the wiring in mine and do a few extra basic (With all E.GR. and emissions) wiring looms to sell, but interest was lacking, so I scrapped the idea.
Mark.
