Wow this stuff can break the bank quick!
How much do original era hemis go to if you can find one? If I needed to I can fab up my own headers that's not a issue for the 440 conversion but I think I would just go with a Hemi. My car is a 340 auto car. I believe the k member, engine harness will need to be changed? What else? Trans? Are the front end parts all the same?