6.0 vs 6.4

[AndrewZimm]

New to the forum and couldn't find anything on these two different motors. I am looking at buying a truck for construction so I'd be towing and hauling quite a bit. I'm always real picky on maintenance and plug my vehicles in and warm them up even far past the cold months. Just wanting some opinions on the general difference (pros and cons) between these motors

[Big_Smokey]

Im biased, but i was also comparing the two before i bought my 6.4L. i think most will agree that twin turbo is a monster. A friend of mine had a 6.0 from new and had zero problems with his with 112000 on it, then his work said he had to trade.
Make sure to get your oasis. if you plan on modding id say for sure the 6.4.they are runners and everytime i tow i feel like im going to rip the tongue off my trailer! I wish they sounded like the 6.0. i like their exhaust sound. I also prefer the interior of the 08-10 trucks. I think for what you will be doing either truck will be fine. When i looked for 6.0s i wanted one with Studs already. From what i found reading here the 6.4l will hold more before needing studs. Anyway thats all i got. Im pretty new to diesels, but after doing my egr. dpf and mini, im in love

[fordpwrstroke7]

Both are good motors IF YOU MAINTAIN AND MONITOR THEM. 6.0 is notorious for blowing head gaskets and it's not a cheap fix when it happens. The 6.4 can make huge power with relatively inexpensive bolt on mods that can be done with hand tools in your driveway.

I have owned both and I prefer the 6.4. Beyond the updated interior styling, I really like the motor. It is smooth, quiet in the cab (even straight piped) and tows very well. I haul tandem dual trailers regularly and the 6.4 handles them well.

[AndrewZimm]

Yeah. I will be towing quite a bit and will be doing small mods and stuff so I will probably go for the 6.4

[LiftedStroker05]

both motors have tons of problems.. yes the 6.4 can be very very fast and have tons of power, as well as the 6.0 can. my buddy has a stupid fast 6.4 SCLB and he has had a few problems and it only has 30k on it. also have another buddy with a crew cab dually and he is having a very hard time keeping his truck running with only 14k on the clock.... the 6.0 is know mainly head gaskets and oil cooler problems. my 6.0 is studded and has a aftermarket coolent system with 100k and iv had 0 problems. either way, both trucks are very strong trucks... but both have there problems as goes with any diesel engine! good luck to you

[AndrewZimm]

Thanks. I am hoping that good maintenance should keep me away from problems with the 6.4. I rarely drive my vehicles on cold motors and plan on buying a remote start right off the bat and getting the chip with the turbo timers and plugging in in the cold weather

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[6.0f250firstcar]

Yeah if I was towing and hauling everyday I would go for the 6.4. The first thing I would do is delete the DPF! I wouldn't drive a 6.4 that wasn't DPF deleted.

[jamess03]

I choose 6.4L because The 6.4L was a response to several reliability issues which the 6.0L PSD had, as well as new, more strict emissions standards for light duty diesel trucks.These issues can actually be more costly to repair than those on the 6.0L, leading many owners to consider replacing their 6.4 L powered Super Duty trucks with a different make. This is generally not the most economic option, since the original purchase price of these trucks is very high, and has depreciated significantly due to the reliability concerns surrounding the engine.
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2013 MERCEDES BENZ SL-CLASS

[colo_dually]

If the emissions equipment is staying in the truck, go with the 6.0L.

Over time the long-term survival of the 6.4L will be very based upon the effects of all that oil dilution during regen. You couldn't pay me to own a truck that compromised by emission controls.