Decision making was never my strong point...HELP lol

if your going to do this swap ...I would leave the 440 the way it is if it runs good and get in the car way before I would start taking the engine apart.

its going to cost and not be an easy task just to get in the car ....if you start taking the engine apart and buying pistons and engine parts then I hope you have some deep pockets.

even if it is a motor home engine, it will still scoot that little car like a rocket, I have a 72 dart that I big block swapped and its just a low compression 440 circa 1976 but with the street tires I have it is way more than enough boost on the street.

then once it is one piece and later after you have the car set-up for BB then its as easy pulling the engine doing your thing and bolting it back together.

you need to be aware, you need an oil pan ...that's not a huge deal but they are different ...you need a 187 or 699 pan

also what kind of swap kit are you going to use?

you can go cheap and go with a Schumacher swap kit ....but that's all it is ....CHEAP.

when I started out I used the Schumacher and it was cheap and served its purpose but if you really care about this car you definitely want a better set-up ...meaning a spool mount DC conversion K or ...I have seen you can weld ....you can probably make something that is a lot better than schumachers .....Shcumachers are for flippers.

I put a 383 in another dart and I used a former slant six K and made my own setup that is strong and easy to work with.

also exhaust is a huge problem, RB headers are high dollar ....your RV manifolds will most likely not work depending on the year ...you can either spend huge coin on headers or big money on HP manifolds ....or you can use log type manifolds which are cheap enough ....but not all of them are the same and it is real picky as to which ones will work.

if your going 4 speed, then your opening up a whole can of worms and probably another $1500 to start out.....if you go auto then you need floor shift, but the auto will be a lot easier .... a lot easier and cheaper ....and there is a chance that the 727 from the RV wont work .....some of those RVs had a freaky deaky tailshaft.....wont work.

plus ....im sure your aware that its not just a drag and drop from the motorhome to the car ....soooooo many things are different and if you do it right plan on some more coin ......when I did mine I changed the valve covers, intake, air cleaner ...even the dipstick to be all year correct for the car....and the result is now a factory looking set up ...if someone didn't know these cars, I can convince them that darts came with 440s because of how original mine looks....just sayin