need advice: 440 in a Duster

I find by dropping them from at least 10', they will drop right in. But the trans will ruin the roof and windshield straight away :D.

Truthfully, its a cool combo. But unless you redo the whole car to handle the drivetrain, you sacrifice a lot IMO. Things like chassis stiffeing, cooling and fuel systems, driveshaft, you already have the disc brakes, but power steering makes cruising and parking more fun if your doesnt have it, hood clearance if the engine has the parts to make it taller, kickdown linkages that fit the chassis. It is pretty much all bolt in depending on exh type, but it is more involved when you visualize the whole thing. Of course that's true with any powertrain mods...