Prevost engine swap possible?
I'm looking at a used Prevost that's a beautiful unit in nice condition, but it's got the old DD 8v92 motor, which I'm really leery of. It's got a rep as a dripper and fuel guzzler. What are the chan...
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It can be done but everything has to change. Engine, transmission and electronics. I was quoted north of $60,000 to make the change. You will be better off buying a newer coach. My current 1988 has the 8v92 and gets 5.5 MPG. Changing to a series 60 can up that to 7-8 MPG so that's not going to pay for the change. The 8V also has more torque and can often out run the newer 60 series up a hill. Yes, the slobber tubes drip some oil and I burn about a gallon every 1000 miles but that's OK, too. There are even ways to catch the oil from those tubes if you just want to keep the underside of the coach cleaner.
There certainly is no reason to swap engines if you are concerned about reliability as the 8V92 is a long haul work horse that will last nearly forever. Even if you needed to swap one out, there is a company in MO that can do it in 2 days for about $15,000 compared to an in-bus full rebuild for about $30,000.
My only caveat would be to ensure that the bus does not have the DDEC 1 electronics (1988 and earlier). I would recommend that it have at least the DDEC 3. If that's the case, buy it, drive it, love it!
There certainly is no reason to swap engines if you are concerned about reliability as the 8V92 is a long haul work horse that will last nearly forever. Even if you needed to swap one out, there is a company in MO that can do it in 2 days for about $15,000 compared to an in-bus full rebuild for about $30,000.
My only caveat would be to ensure that the bus does not have the DDEC 1 electronics (1988 and earlier). I would recommend that it have at least the DDEC 3. If that's the case, buy it, drive it, love it!
