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nehuge's avatar
nehuge
Explorer
Oct 29, 2013

Need your input on new-used RV purchase

Currently have a 1995 Thor Residency, 460 (7.5L) Ford motor at 60,000 miles.

I'm looking at buying another one of the same exact rig, but it has the 8.3 Cummins with an Allision 6030, 21,000 miles.

With very little price difference between what I can get for my rig, and this one that I can buy from a buddy, should I do it?

I think it is the 250 HP version. So:

1) Are these easy to find parts for?
2) Were there any known issues/recalls on these engines?
3) Any upgrades/modifications that can be done to increase power?
4) How reliable is it compared to the 460 in mine?

2 Replies

  • ferndaleflyer wrote:
    You must be kidding----the Cummins is hands down much better than any gas engine and the Alison trans is what they use in garbage trucks. If those guys can't tear them up they must be good.......Thats the combination in mine and at 100,000mi has been no problem.....I think the older ones are better.


    X2

    To increase power, this engine also came in a 300 HP version from Cummins, but I really don't think the cost of making the change would be worth it. Also, a Banks kit would increase HP, but again, it isn't really needed and I wouldn't recommend it.

    Parts are absolutely not a problem. Their are Cummins shops all over the country and NAPA also sells parts.

    As for reliability, the 8.3 isn't scheduled to have any serious preventive maintenance done until 300,000 miles. Your 460 would be lucky to last that long.

    I have an 8.3 and it is a wonderful engine with enough power. It's quiet and smooth. Don't drive your friend's coach as you'll be spoiled the first time you drive it.
  • You must be kidding----the Cummins is hands down much better than any gas engine and the Alison trans is what they use in garbage trucks. If those guys can't tear them up they must be good.......Thats the combination in mine and at 100,000mi has been no problem.....I think the older ones are better.