360 vs 440 79 coachman
Enough of them came with a 440, so it shouldn't be too difficult to scrounge up the swap list. Depends on the size of unit you have, the 360 should be fine as long as you aren't pulling anything heavy. My brother had a mid 70's Dodge motorhome/camper with a 360, it did fine even going in the Rocky mountains. It's not going to shoot from 50 mph to 80 up a steep grade.... lol
- what might be a nice upgrade is the 5.9 magnum in place of the LA. You'll gain torque and HP and it would be a straight up bolt in basically. Put a nice, small 4bbl on it.