I found a 74 SE Charger in good codition with no motor but a 727 in it it was a big block car. I found a add this kit is from indy cylinder head its a 472 its a 360 block 60s over with a custom built crank it comes in to differnt hp rateing one is 630hp and 600t the other is 700hp and does not give a torque rateing the kit will cost $1195 or i know where theres a 440 i can have for free  that i would build i dont know what to do because i already have a good 360 that runs so i dont know what would be better 472 or 440.
 

If it is an original 440 car then building a 440 would help keep the cars value, however if your a small block fan a 360 stroked or not stroked is a great option.