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Ford 7.3L V8 vs Ford 6.8L V8: Which Engine Is Best?
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- เผยแพร่เมื่อ 17 ส.ค. 2024
- Today I compare a 2024 Ford Super Duty 7.3L V8 to a 2024 Ford Super Duty 6.8L V8!
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A couple of things to note.
1. 7.3 runs slightly lower compression, so you’re probably feeling the response difference in the throttle (not torque).
2. The 6.8 runs the 10R100, so less parasitic loss than the 10R140, which probably gives you better performance. 3. The longer stroke in the 7.3 means the pistons are moving faster at the same crank rpm. So it probably sounds like it’s revving harder.
@Ben Hardy: what gears did each truck have? That might explain things…
Got a brand new 2024 6.8 xlt 373 I have 900 miles on it . Went on 400 mile trip got 16 mpg highway and a little round town .
I hand calculated it. This truck drives like a dream shifts smooth and plenty power.
6.8L - then again I'm biased because i have one. i'll get about 12 mpg city and 16.6 highway, but towing my 7600 LB RV trailer, 9.5 MPG at 68-70 mph, 10 mpg or more at 65 mpg, 11+ 55 MPH, and that's with 3:73 gears stock 18 inch tires. Hadn't head of any engine issues with these 6.8L and hope it remains that way!
@@johnfertsch6839 18” tires!
@@joeyjordan1209 I run on 8" casters.
@@tszymk77 heck yea. Bet you can spin those pretty easy in any gear
Sounds great what year do you have
I test drove both of these engines also over the holiday weekend. Just driving around town the 6.8l felt more responsive and just as smooth on the on ramp up to 70 mph getting up to speed. Now when I stopped both trucks on an 8% uphill grade street and took off from a stop the 7.3L did have a little more pull especially when it hit 3000 rpm. Both trucks had 3.73 gearing. You can get a 6.8L with 4.30 gearing which I've found at some dealers but I think mpg wise you might as well get the 7.3L if you need the extra grunt. The 6.8L will take the fleet sales volume as those uses don't need to idle a 7.3l all day long, might as well have an engine that's a little more efficient for those uses.
6.8 because im cheap.
60 something thousand is outrageously expensive.
@@paulfeasal6024 they should be around 39K OTD
Xlt is probably the trim I would go if I bought any Ford truck. Maybe an XL. Depends on when I get lumbar support and the telescoping steering wheel. Don't want to over due it onnthe technology because it's expensive when it breaks and Ford's are known to break pretty quickly. However they also usually have a good amount of parts too if you need to fix something.
@@paulfeasal6024fords are know to break quickly??? Only according to the internet where is everyone that has had a problem that comes to complain or investigate.. percentage wise they are very good trucks..majority of fleets running any truck of the big 3 have low failure rates..
@@joeyjordan1209exactly, if they broke and were pieces of junk like people on the internet claim, they wouldn’t be the best selling truck for the last 47 years.
If you look at the axle ratios of both trucks on the sticker the 6.8 has the 4.30 and the 7.3 has the 3.73 that is why the 6.8 had more low end torque the 4.30 ratio will get better city MPG's.
You confirmed my suspicions, thank you. The 6.8 feels spicy.The smaller transmission has less parasitic drag and the actual power difference is probably more like 15-20 hp. Need them on a chassis dyno to know for sure. I think they rate the 7.3 optimistically and the 6.8 spot on.
Give me the 7.3L Godzilla 😎
The 6.8 provides a less expensive option for fleet sales; if a your a business and need 10 of these the savings adds up pretty fast.
I suspect there is more hp/tq the Trans is robbing from 7.3 vs 6.8. Since there done what difference. Maybe it’s in the trans torque converter
6.8 had 4.30s, 7.3 had 3.73s. Look at the highway RPM.
Probably feels slower becauae its pulling more weight..
Need to know axle ratio in each truck. Different transmissions for each also
Purpose of the 6.8L…I would imagine higher payload capacity for a simple work truck with a long bed. Just a guess though.
It's a standard, no cost (or credit) engine.
Purpose is lower cost. Nothing more nothing less.
Ben did you check the rear end ratios?
Bud, you seem like a nice dude, but you’re killing me.
The motors use the same block, displacement is internal. Negligible weight difference.
And they only offer the 7.3 to charge a few bucks more, use the “7.3” moniker (a la OG Powerstroke).
There’s no good reason to buy the 7.3 while the 6.8 exists. It’s just marketing, as it costs them zero additional dollars to build the “larger” motor.
Aside from an insane amount of dead time, your review effectively shows that the butt dyno agrees. Snake oil.
@Ben Hardy: Do most Super Duty owners who pay the $12,500 extra for the high output PSD actually use it for what it’s built for?
I live in Texas and I can tell you most people who get the diesel never tow anything they just want to get a diesel because it looks good to them and others around them
No one wants to drive a minivan, so they try to arrive as quick as possible… at least that is why I drive like a maniac in my wife’s minivan
I’d personally get the 6.8 because it’s not any slower and has more tech than the 7.3
The 6.8 exists for one reason and one reason only: marketing. It allows them to upcharge for the 7.3. The two engines are essentially identical with minor changes, and the 6.8 trucks get a weaker transmission. Fuel economy, driveability, etc. is going to be identical between the two. There is NO WAY I'd buy a 6.8 truck new.
@Ben Hardy: Why did Ford bother with the 6.8 after getting rid of the 6.2L Boss engine? The 6.2 was a champ while the 7.3 has had issues and since the 6.8 is related to the 7.3, I would be wary…
The 6.2L while proven to be a durable engine is a dual overhead cam engine and more costly to construct while the 6.8L is just a shortened stroke 7.3L push rod engine and much simpler to build
There’s no issues with the 7.3. There were lifter issues early on with a small number of engines but that hasn’t been an issue for almost 2 years. The 6.2 is a dog while towing. It’s not even close.
The 6.2 is a complete dog....
How do u tell which is a better engine with a 5 minute drive?
💯 You would have to tow with the trucks to actually evaluate their performance.
As we saw, you don’t
By reading the comments from people who actually own them and use them for work and RV's.
Going around the block isnt gonna tell you much....
It’s crazy how a 3.5 ecoboost has technically more torque the these two engines but for the half ton segment
@@jacksturgell8756 yeah, but you can use the Super Duty’s torque all day long, for years, without taxing the engine.
I bought a 1986 F-250 4x4 new with the 300 i6 and a 4 speed with granny low.
It wouldn't go over 65 mph but it would pull a house off it's foundation I think....
And was reliable.
14R100 behind the 6.8...hard pass. Also, the 6.8 uses a cast crank vs the forged crank of the 7.3. cost cutting... The 6.8 is a fleet engine.
How? It hasnt been out long to prove reliability
@@motormossvlogs1450because forged and cast aren’t a new technology and we know forged is stronger than cast.
@@jabroni6199 i meant the transmission. The 10r140 is junk. My buddy lemon lawed his 7.3 because of it. 3 transmissions in 63k miles. Ford bought it back.
These motors are $18,000 to $19,000 on Ford's website.
Get a haircut and a shave!!!
Better at what? Either one will do what you need. Contrary to popular belief, capability depends on the truck itself. Any modern engine is plenty powerful enough to do what needs to be done, which is why the f550/650 with the 7.3 godzilla and 6.7 are detuned and have less power than the f250. Power is not a problem with modern trucks. Just got to decide if you want more power, more mpg or the emissions reliability and maintenance disaster of a modern diesel.
Like both trucks are cool
Easier to add a turbo to the 6.8l
100k trucks that don't sell. Many cooler options for 60k
This was 4.30 vs 3.73
I would take the 6.8l the 7.3l has had valve train issues
It's the same engine, just a de-stroked 7.3.🙄
@@M_dot202yep, I think the 6.8 runs a marginally higher compression ratio (probably just a byproduct of the different stroke length). That’s it.
Great video but Nissan Altimas are the worst drivers 😂
BUTT DYNO HAS NOT BEEN CALIBRATED.....
They detuned the 7.3
From what I hear, the 6.8 feels faster than the 7.3.
I’m more concerned about towing.
@@slaytanic921 I still haven't seen any videos on it towing. Have you?
@@marksman4004I’ve been looking for 6.8 towing reviews for 9 months haven’t seen one. TFL had one but all they did was a useless walk around video like this one.
@jabroni6199 🤣🤣🤣 yeah I seen that one
@@marksman4004 The channel Truck King did some towing and light work with a 2023 f250 STX trim. That's the only one I've seen.
Nah 6.7L Diesel is better
Unless your talking dual rear wheels and heavy towing over 18k regularly it certainly is not. I purchase for our fleet ,most fleet managers will not go near the 6.7 until there in the 450/550. The cost is too high as well as cost per mile . Gas wins by a long shot w srw trucks .
@@JohnDiMartinoI’m still thinking a 7.3 in a 350 drw, pulling a 5th wheel though, not fleet.
Not trying to deal with all the problems of a modern diesel. Not even half of the people who buy them utilize them in a manner that would necessitate owning one over a gasser.
Why pay more up front and more in the long run with exponentially more hassle?
Failed engines as usual from the American industry