1969 Mustang 4.6?

OK, I'll chime in having done the mod motor swap. This has been posted above and I have said it before, but I will repeat it again:

Even with the "free" engine, this will absolutely be a much more expensive and massively more time-consuming swap than purchasing and using a 302/351/whatever pushrod engine.

Physically putting the engine in the car isn't rocket science. A chop chop here and a zap zap there and it's in. And now you've swum to the center of the ocean -- a remarkable feat but really just the beginning!

Getting all of the car's other systems, both mechanical and electrical, to work is the trick. The steering, cooling, heating, suspension, fuel, lubrication, and braking systems need extensive modification. Never mind the electrical system -- that's a whole huge project in and of itself.

If you're just trying to put a "pretty" stang together for your gf, you will live to regret trying to swap the Lincoln mod motor in. She will also probably dump you because you will have to devote every bit of your free time for the next year to getting it to run.

I don't mean to sound harsh -- just my .02 from experience.
 
Notching Shock Tower

RRS makes a shock tower notching kit to fit modular motors in classic 'Stangs. It is sold by National Parts Depot for $194.95.
That would be the first step to putting that motor in. If there is a mock up of the 4.6, it might help to get one of those as well. Then you can put the mock up in and begin to find solutions for all the other problems that will come up like manifolds or headers, hooking up a cooling system, Air conditioning, electrical, motor mounts, etc. Depending on the transmission used you may have to fabricate some parts like crossmembers, transmission mounts, kick down levers, vacuum lines. Don't forget the transmission and engine for a 4.6 will both be computer controlled and the computer has to be fit somewhere. You will have to get a new fuel sending unit with a return like on a 5.0 EFI conversion. You will also need a new electric fuel pump and that will have to be fitted somewhere. The driveshaft may present problems as well, but you could probably have one custom made.
 
mo'factor said:
RRS makes a shock tower notching kit to fit modular motors in classic 'Stangs. It is sold by National Parts Depot for $194.95.
That would be the first step to putting that motor in. If there is a mock up of the 4.6, it might help to get one of those as well. Then you can put the mock up in and begin to find solutions for all the other problems that will come up like manifolds or headers, hooking up a cooling system, Air conditioning, electrical, motor mounts, etc. Depending on the transmission used you may have to fabricate some parts like crossmembers, transmission mounts, kick down levers, vacuum lines. Don't forget the transmission and engine for a 4.6 will both be computer controlled and the computer has to be fit somewhere. You will have to get a new fuel sending unit with a return like on a 5.0 EFI conversion. You will also need a new electric fuel pump and that will have to be fitted somewhere. The driveshaft may present problems as well, but you could probably have one custom made.


actually the RRS notching kit requires the use of their stut kit i believe as it does away with the UCA monuting point on the shock towers.