Can you swap out a slant 6 in a 1970s dart or scamp with a more modern post 2005 high output 4 cylinder? Have you seen anyone try this?
I haven't seen what you're explaining specifically but I've seen straight 6s like the RB26 or 2JZ swapped into 60s-70s muscle cars. I've also seen new ecoboost I4s swapped into fox body mustangs. I'm sure it's possible, it may just take some fabrication of engine/transmission mounts. Old muscle cars have tons of space in the engine bay and trans tunnel so just about any 4 cyl swap should theoretically fit.















