Fitting in a late era 440...getting confused

[proud_owner68]

Im not sure what engine harness I shoud use on my 1977 440 engine for my charger.  I have one for a 68 383 engine but Im not yet sure if its all going to connect or not.   I also dont know if a 77 engine harness will connect to my 1969 dash harness..  Man, this engine transition is getting more confusing than I expected!   So far I changed oil pans and sump with one from a 68 383. Replaced the water pump housing and bought new exhaust manifolds.  What else do I have to do?   I see the engine mounts look to be a little different but they still should work right?

[Telvis]

The wiring should be the same.

[firefighter3931]

You will need to transfer over the engine brackets and motor mounts from the old engine to the new engine. The mounts were different between 68 and 78. 

Ron