So my dad had a 2006 f-350 6.0 that was bullet proofed(we think whoever did it did not do a very good job at it). After driving for a while the transmission failed and we had to get a whole new transmission. A few months later the something ruptured and coolant got into the oil and now the whole engine has to be rebuilt. it’s getting passed on to me for so i’m trying to decide to take the rebuild route and spend 5k to get the engine rebuilt and then bulletproofed correctly for another few grand or try and just put a cummins in it or convert it to a gas. just would like some thoughts on what to do because I don’t want to rebuild the 6.0 and then just have it blow again.

 

You could also look for a used engine. By far the cheapest option.

 

The cummins swap from what I have read is not cheap either. And it has been pointed out that once the swap is done it may or may not be supportable since there are changes to just about everything. If not looking for big power look for a international engine or another 6.0. The 6.0 has had a bad rap and issues but now there are many builders out there that say it is actually a good engine and can make power etc. It is not however one that can be abused service wise and requires oil changes etc as required, things many people do not do. So whatever you decide its gonna cost some $$ but way less than the $60000+ current trucks selling for.

 

Having two Cummins swapped fords in my driveway right now (a 2010 F250 and a 2005 Excursion), I can say with certainty that they are not cheap to convert. It absolutely would be cheaper to put another 6.0 in there. And there are other drawbacks as well, like good luck getting a shop (any shop really) to touch the thing afterwards. But if you're willing to put in the labor time, put up the money, and deal with maintaining it yourself after the conversion, they're pretty freaking awesome.

I trust my 12 valve converted 2010 F250 more (like WAY more) than the POS 6.4L that came in that truck. The 6.4 was fast when in ran, but keeping it running reliability was a challenge. As for the Excursions 6.0, it started filling the crankcase with fuel (like a lot of fuel after 1k miles of driving), I replaced the injectors and all O-rings, still filled the crankcase with fuel. Wanted to use the Excursion to tow our family's travel travel to remote places, and IMHO, the 6.0 wasn't reliable enough for that. So I rebuilt another P-pump 12 valve and dropped it into the Excursion to make what I consider to be the ultimate family vacation tow rig.

If you're actually interested in what's involved in doing a conversion, here's the build thread I made for the Excursion (previous 6.0 diesel).
https://www.cumminsforum.com/threads...e-way.2557973/

And here's the one for the F250 (previous 6.4 diesel, slightly different engine bay but very similar overall)
https://www.cumminsforum.com/threads...-swap.2540065/

If after reading through those you aren't scared off from doing a conversion, post back up (or make a new thread) and I'll answer all the questions I can.
...

 

Diesel Conversion Specialists has a lot of good info on the cummins swap. They claim the 6.0 powerstroke is the easiest to do, FWIW.

 

alright thanks i’ll look into that

 

You sure it needs a rebuild? That said too many variables to really say, but for my pickup I think I would consider stock rebuild myself or maybe more likely a long block from Asheville.

 

yea we’re sure it needs a rebuild. I think im going to end up rebuilding the stock engine. seems like the cheapest and easiest option

 

"something Ruptured" Sounds like the Oil cooler Clogged which caused the EGR cooler to rupture then the head gaskets to blow.
Typically this is just replace those and head bolts. Unless you bent a rod or something I don't see need for a full rebuild.
It will however require to take off everything on the top of the engine but its something you could do yourself (aside from head flattening)

IF the rods are bent or pistons blew then look for a wrecked one and bulletproof that.

 

You can always just get an ashville long block. Overhauling these engines can be a money pit.

 

You can find a used engine here and probably be ahead of it all, rather than rebuilding it. If you're doing all the work yourself then the savings is there. If you are going to pay someone and be at their mercy on every little detail then get rid of it, or have lots of money ready to go,



​​​​​​https://www.car-part.com/index.htm

 

yea that’s what happened and we just expected it would need a full rebuild but thanks for that.