1977 Dodge Sportsman

I have a 78 with a 360 in it. The easy way to id the 360 is the distributor is at the rear of the engine and the 318 is to the front.
As for propane mine are in a compartment on the drivers rear. Water tanks are under the rear seat.

They are 2004 haha, a bit over the 6 year limit ??

Look at the date of manufacturer, the last 2 digits of the DOT code on tire (probably only on one side of tire.) If less than 7ish years old they may work in a pinch. But if older or damaged in any way I'd not use them

I picked up the tires for only $100, but now you guys got me stressing! I probably should, not worth this beast going off the road or into another vehicle... looks like they are pretty cheap in comparison to my car tires so I guess I’ll bite the bullet! Thanks for the tips.

Few suggestions. Change the oil at a minimum before you drive it 5 hours.
318/360 will have same exhaust manifolds.
Find a set of 16” takeoff dually wheels they’re common and not too expensive. Long run, better than 4 old tires and 2 new ones and relatively unavailable 16.5s.
We do t know exactly what condition it’s in, but I’d personally figure out how to do engine oil, axle, coolant and possibly trans fluid and filter (that’s a **** shoot on an old unknown condition trans though) before driving it home.

Cave is probably Caveman, a brand from back in the day.

By far your biggest concern now needs to be tires. Yes if you have the time and money you should do all the fluids, all the belts, and all the hoses, filters, etc. But if you lose a hose you are just stranded by the side of the road. But if you lose a tire at the wrong time you could easily cause a serious accident.

You mention your tires are on 16.5 wheels. I've had three RV's and the first two were 16.5". They were common back in the day but is now extremely difficult to find. There is one common-name brand making them (Firestone Transforce) and lots of no-name Chinese companies making them. If you have a blowout on the road (likely with old tires regardless of how they look) it is highly likely you will not be able to find a replacement on the road, even if you are near a big city. You may need to order a replacement and wait days. I strongly encourage you to replace all tires more than 7-10 years old (by manufacturer date) including the spare before you take your trip, regardless of appearance of tires. Another possibility is replace your wheels with junkyard take-offs (from any of the big-three automakers will work) in 16" size which is much more common, wheels will cost but tires will be cheaper.

I love older RVs and have no doubt you will get her on the road and make many great memories. Good luck and have fun!

Could CAVE possible stand for Cut Away Van E...?...

Do a search on the VIN. It should give you engine info and if it's a b200, 300, or other. As for parts go to rockauto.com

I'll bet you if you went to a Mopar site they could tell you what engine is in there.

One thing I would do is service the cooling system and transmission. Maybe even break it down and check the brakes too.

Anyone have advice on the engine? Pretty sure it’s a 318 or 360, though when I google the exhaust
Manifold I have the casting # for It shows 318 Mopar, though I think they fit on a 360 as well... so a little unsure if I should get spark plugs for a 360 or 318, maybe those are compatible too? Idk I’m a ford guy